Cookies are on sale! Today each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost you $2.80! Write an equation to determine the normal price of each cookie. Find the normal price of each cookie.

Answers

Answer 1
Ok, let us use "C" as our variable that will equal the normal price.

   (C - $.75) 7 = $2.80

Divide both sides of equation by 7
C - $.75 = $2.80 / 7 Add $.75 to both sides of equation

C = $.40 + $.75

C = $1.15 
Answer 2

Answer:

The price of each cookie is $ 1.15.

Step-by-step explanation:

Let x be the normal price of each cookie,

Since, each cookie costs $0.75 less than the normal price,

Thus, the new price of each cookie = ( x - 0.75 ) dollars,

So, the price of 7 cookies = 7( x-0.75 ) dollars

According to the question,

The price of 7 cookies = $ 2.80

7( x-0.75 ) = 2.80

Which is the required equation to determine the normal price of each cookies,

For solving the above equation,

Divides both sides by 7,

x - 0.75 = 0.4

Adding 0.75 on both sides,

x = 1.15

Hence, the price of each cookie is $ 1.15.


Related Questions

The graph below represents the function f(x), and the table below represents the function g(x).


Which statement is true?
The maximum value of g(x) is greater than the minimum value of f(x).


The minimum value of g(x) is less than the maximum value of f(x).


The minimum value of g(x) is greater than the maximum value of f(x).


The maximum value of g(x) is less than the minimum value of f(x).

Thank you! :)

Answers

The statement that is true about the graph is The maximum value of g(x) is greater than the minimum value of f(x).

1. "The maximum value of g(x) is greater than the minimum value of f(x)": This is true because the maximum value of g(x) is -10, which is greater than the minimum value of f(x) (which we don't know, but it cannot be lower than -10 based on the given data).

2. "The minimum value of g(x) is less than the maximum value of f(x)": This is true based on the given data, as the minimum value of g(x) is -1, which is less than the maximum value of f(x) (which we don't know, but it cannot be higher than -1 based on the given data).

3. "The minimum value of g(x) is greater than the maximum value of f(x)": This is false based on the given data. The minimum value of g(x) is -1, which is less than the maximum value of f(x) (which we don't know).

4. "The maximum value of g(x) is less than the minimum value of f(x)": This is false based on the given data. The maximum value of g(x) is -10, which is less than the minimum value of f(x) (which we don't know, but it cannot be lower than -10 based on the given data).

The greatest value of g(x) is -1 (the higher number for the g(x) entry in the table), and the minimum value of f(x) is -3 (the lower y/f(x) you may point on the graph). As a result, the maximum value of g(x) exceeds the minimum value of f(x).


Write an expression for the perimeter of the triangle shown below: (4 points)
A triangle is shown with side lengths labeled 0.5x plus 9, 3x, and negative 3.4x minus 25.


6.9x − 16

6.9x + 16

0.1x − 16

0.1x + 16

Answers

The correct equation is: 0.1x-16

As to find out the perimeter, you need to add all sides of the triangle together:
(0.5x+9) + 3x + (-3.4-25)
then group the variables together:
(0.5x+3x-3.4) + (9-25)
0.1x  - 16

Answer:

The correct option is 3.

Step-by-step explanation:

It is given that the length of sides of a triangle are 0.5x+9, 3x, and -3.4x-25.

Let a=0.5x+9, b=3x, and c=-3.4x-25.

Perimeter of a triangle is the sum of length of all three sides.

[tex]Perimeter=a+b+c[/tex]

Substitute a=0.5x+9, b=3x, and c=-3.4x-25 in the above equation.

[tex]Perimeter=(0.5x+9)+(3x)+(-3.4x-25)[/tex]

On simplification, we get

[tex]Perimeter=0.5x+9+3x-3.4x-25[/tex]

Combine like terms.

[tex]Perimeter=(0.5x+3x-3.4x)+(9-25)[/tex]

[tex]Perimeter=(0.1x)+(-16)[/tex]

[tex]Perimeter=0.1x-16[/tex]

Perimeter of the triangle is 0.1x-16. Therefore the correct option is 3.

Nelson opened a savings account 11 years ago with a deposit of $3,115.89. The account has an interest rate of 5.3% compounded monthly. How much interest has Nelson earned?

Answers

Attached solution with detailed work using compound interest formula.

Answer:

2458.77

Step-by-step explanation:

3115.89*(1+0.053/12)^(11*12) - 3115.89 = 2458.77

Can a brick of 9cm by 12 cm by 25 cm can pass through a pipe of diameter 14 cm?

Answers

Think of a cross-sectional view of the brick:  It's a 9 cm by 12 cm rectangle.  Calculate the diagonal of this rectangle, using the Pyth. Thm.  :

(9 cm)^2 + (12 cm)^2 = diagonal^2
 Then 81 + 144 = diagonal^2 =225.  So, the diagonal is 15 cm.  

No, the brick will not pass through a pipe with inside diameter 14 cm.
No, I don't think it can pass.

9 cm (length) X 12 cm (width), 25 cm (height)

The length of how long the brick is does not matter. BUT, the width and height matters. All they need to be, is smaller than 14 cm. BUT, the height is 25 cm and is not smaller than 14 cm, so No, it will not fit because the height to too tall to fit in. I believe I am correct, if not, anyone can correct me. I hope this helps =).

May

simplify the expression by combining like terms.

7b + 4 - 3b - 2

what the number that goes n the box ?

( ? ) b + ( ? )

Answers

4b + 2 is your answer just to help you out if you use cymath you can easily get your answer like i did 

Final answer:

Combine like terms by adding or subtracting the coefficients of terms with the same variable and combining constants. The simplified expression is 4b + 2, so the coefficients that go in the boxes are 4 and 2.

Explanation:

To simplify the expression by combining like terms, follow the process of identifying and adding/subtracting like terms. The expression 7b + 4 - 3b - 2 contains both variable terms (containing 'b') and constant terms (just numbers).

Combine like terms:

Combine variable terms: 7b - 3b = 4b.

Combine constant terms: 4 - 2 = 2.

After combining like terms, the simplified expression is 4b + 2.

Therefore, the numbers that go in the boxes are 4 for the coefficient of 'b' and 2 for the constant term.

Relationship A has a greater rate than Relationship B. This table represents Relationship B. Hours worked 2 4 5 8 Amount paid 30.40 60.80 76 121.60 Which equation could represent Relationship A? Hours worked is represented by x and Amount paid is represented by y. Select each correct answer. y = 15.4x y = 15.2x y = 16.4x y = 14.9x

Answers

Answer:

The answers are y=15.4x and y=16.4x.

Step-by-step explanation:

I took the test just 3 minutes ago

Two or more expressions with an equal sign is called as Equation. y = 15.2x is the equation which could represent Relationship A.

What is Equation?

Two or more expressions with an equal sign is called as Equation.

Given that,

Relationship A has a greater rate than Relationship B

Hours Worked                    Amount Paid

2                                               30.4

4                                                60.8

5                                                 76

8                                                121.60

Let us take  hours worked as x and Amount paid as y.

In the given functions

y = 15.4x ...(1)

y = 15.2x ...(2)

y = 16.4x ...(3)

y = 14.9x....(4)

We need to check which satisfies the relationship between x and y.

If x=2 then we need to get 30.4

So let us put x=2 in equation 1.

y=15.4×2

=30.8

Which does not matches.

Now let us check with second function.

y=15.2×2

y=30.4

It matches.

So let us check for other values.

x=4

y=15.2×4

y=60.8

x=5

y=15.2×5=76

if x=8, y=15.2×8=121.6

Hence  y = 15.2x is the equation which could represent Relationship A.

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Violet is watching the sand in a hourglass drain from the upper portion to the lower portion of the glass. She wonders how fast the sand is draining.

Which unit rates would be reasonable for Violet to use to describe how fast the sand is draining from the upper portion to the lower portion of the glass?

Select EACH correct answer.



gallons per hour

liters per hour

cubic centimeters per minute

cubic inches per second

Answers

Gallons and litters are liquid. Cubic inches per second would be to fast i think so Cubic Centimeters by minute?

The unit rates which will be reasonable for Violet to use to describe how fast the sand is draining from the upper portion to the lower portion of the glass is cubic centimeters per minute.

Explanation:

As the first 2 options gallons per hour and liters per hour, these denote liquid forms. But sand is not liquid that is why it cannot be the answer.

Cubic inches per second is very fast as compared to the small hourglass and the amount of sand that could be present in it. Moreover one side of the hourglass needs to be emptied in 24 hours, so this option is also not possible.

I need help on this problem

Answers

Where is the problem?

How do you solve for B?
Equation is T = hP + 2B.

Answers

t = hp + 2b

Subtract hp from both sides.

t - hp = 2b

Divide 2 from both sides.

b = t - hp / 2

Hope this helps!
Final answer:

To solve for B in the given equation, subtract hP from both sides and then divide both sides by 2. This results in B = (T - hP) / 2.

Explanation:

To solve for B in the equation T = hP + 2B, you need to isolate B. Here's a step-by-step process to do that:

Subtract hP from both sides of the equation to get: T - hP = 2B.Then divide both sides of the equation by 2 to isolate B. The equation becomes B = (T - hP)/2.

So, the solution for B in the equation is B = (T - hP)/2.

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a bank gives you a simple interest loan at a rate of 5.5% after 3 years, you have paid the entire principal + 41.91 dollars in interest what was the original principal amount of your loan

Answers

Imsorry i dont get the question, but if you use a online interest calculator you will get your answer.
 

Jake, Becky, and Max are meeting at Charley's Pizza for dinner and then plan to go to a movie. When they arrive at the pizza place, each one of them has a different coupon. They decide to use the coupon that will give them the best deal. Jake's coupon is $19.99 for a pizza and pasta meal deal; Becky's coupon is for two large one-topping pizzas--each at 2/3 of the menu price; and Max's coupon is for three medium one-topping pizzas -- each at 1/4 off the menu price. According to the menu, a medium one-topping pizza is $8.99, and a large one-topping pizza is $14.89. They also spend $1.25 each for sodas and $5.00 on the tip. At the movie theater, Max has a coupon that's good for 1/2 off a third movie ticket when you purchase two other movie tickets at the regular price. The regular price of each movie ticket is $9.80. Although Jake, Becky, and Max plan to split the cost of the pizza and movie, they decide that with the coupons, it's just easier if one of them pays at each place. So, the friends agree that Jake will pay for the pizza and Becky will pay for the movies. At the end of the night, they'll figure out how much Max owes both Jake and Becky.  At charleys pizza Whos coupon should they use?

Answers

They should use Beckeys Coupon, I hope it helps you :)

the answer is Becky,s hope this helped


Paul's car will go 49 kilometers on 7 tanks. Paul wants to know how fuel efficient the car is.
Please help by computing the ratio.

Answers

49 kms : 7 tanks
divide both sides by 7
equals
7 kms : 1 tank
Hello there,
Distance : Tanks
49           :   7
Since both sides are divisible by 7, 

Distance : Tanks
7             :    1

On side note: From what I have learnt, do not put any units (in this case km) when solving ratio

Hope this helps
~Top

If a photo measuring 4 inches by 6 inches is placed in a photo frame that is 2 inches wide all around, what percent of the framed photo is the photo itself?

Answers

it would be 2 by 2 in inches as the frame can only fit that much , which the area framed would be 4 inches as you multiply 2×2=4

Answer:

Percentage of the photo = 50%

Step-by-step explanation:

Given that the measurement of the photo is 4 inches by 6 inches and the measurement of the photo frame is 2 inches wide all around, it simply implies that is measurement of the photo frame is (4inches + 2inches) by (6 inches + 2inches). I.e 6inches by 8inches

To find the percentage of the photo itself, let find the area of the photo and that of the frame

Area of photo = 4 inches x 6 inches = 24inches²

Area of photo = 6 inches x 8 inches = 48inches²

Percentage of the photo = area covered by the photo / area covered by the frame x100

Percentage of the photo = 24/48 * 100

Percentage of the photo = 50%

what is the answer to this
3b+8= -10

Answers

b=-6 is the correct answer

-6 is the answer. b = -6.
3b = -10 -8
3b = -18
b = -18/3
b = -6

Use known facts to find the product 9x5

Answers

9 times 5 is 45
easy
9x5=45 that is he answer

How you write 5×923 in expanded form

Answers

write "23,851" as "2 ten thousands, 3 thousands, 8 hundreds, 5 tens and 1 ...:)
5 x (900+20+3) i think thats it

three times a number increased by 5 is less than 17

Answers

3x + 5 < 17
3x < 12
x < 4
3x+5<17
3x<12
x<4

the answer is x<4

At 9:00 am linda leave work on a trip, sets her cruise control at 60mph. At 9:30 am, Bruce notices she left her briefcase and gets on the free way driving 90mph. At what time will Bruce catch up with Linda?

Answers

60×1.5=90 1.5 hours equals 10:30
9:30 + one hour equals 10:30 and 90 miles away
In conclusion they will meet at 10:30
Final answer:

Bruce will catch up with Linda at 9:48 am.

Explanation:

To find the time at which Bruce catches up with Linda, we need to determine the time it takes for Bruce to cover the same distance that Linda has already covered.

Since Linda starts her trip at 9:00 am and Bruce starts 30 minutes later at 9:30 am, Linda has a head start of 30 minutes or 0.5 hours.

In that 0.5 hours, Linda travels a distance of:

Distance traveled by Linda = Speed * Time
Distance traveled by Linda = 60 mph * 0.5 hours
Distance traveled by Linda = 30 miles

Now, Bruce needs to catch up with that distance of 30 miles. Let's find the time it takes for Bruce to cover that distance at his speed of 90 mph:

Time taken by Bruce = Distance / Speed
Time taken by Bruce = 30 miles / 90 mph
Time taken by Bruce = 0.33 hours

Since Bruce started at 9:30 am, he will catch up with Linda at:

Catch up time = Start time + Time taken by Bruce
Catch up time = 9:30 am + 0.33 hours
Catch up time = 9:48 am

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A business owner pays $1,200 per month in rent and a total of $120 per hour in employee salary for each hour the store is open. On average, the store brings in $200 in net sales per hour. Which equation can be solved to determine the break-even point if x represents the number of hours per month the store is open?

Answers

Final answer:

The break-even point can be determined by setting the net sales per hour equal to the total cost per hour. The equation to solve for the break-even point is $200x = $1,320x. By dividing both sides of the equation by $1,320, we can find the value of x, which represents the number of hours per month the store needs to be open to break even.

Explanation:

To determine the break-even point, we need to find the number of hours per month the store needs to be open in order to cover all its costs. The total cost for each hour the store is open is the sum of the rent and the employee salary. So, the total cost per hour is $1,200 + $120 = $1,320. The break-even point is reached when the net sales per hour equals the total cost per hour:

Net sales per hour = Total cost per hour

In this case, the net sales per hour is $200, so we can set up the equation:

$200x = $1,320x

where x represents the number of hours per month the store is open. By dividing both sides of the equation by $1,320, we can solve for x:

$200 = $1,320x / $1,320

$200 / $1,320 = x

x = 0.1515...

So, the break-even point is approximately 0.1515... hours per month, or about 9.09 minutes per month.

QUESTION WORTH 20 POINTS, ANSWER A.S.A.P.!!!!!!!!!!!!!

The charges for two shuttle services are shown in the table. Find the number of miles for which the cost of both shuttles is the same.

                  Pickup Charge ($)            Charge per Mile ($)
-----------------------------------------l--------------------------------------------
Easy Ride:  $10                        l          $0.10
-----------------------------------------l--------------------------------------------
Best:           $0                          l          $0.35
-----------------------------------------l--------------------------------------------

Answers

At 40 miles, they will each cost $14

The number of miles for which the cost of both shuttles is the same is 40.

What is Slope of Line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

The charges for two shuttle services are shown in the table.

m=0-10/0.35-0.10

=10/0.25

Ten divided by zero point two five is 10 by one divided by 4.

=40 miles

Hence, the number of miles for which the cost of both shuttles is the same is 40.

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on a blueprint of a house, 25 millimeters represents 4 meters. the actual length of the living room is 5 meters. what is its length on the blueprint?

Answers

First, we need to create an equation for this problem.
5(25 mm ÷ 4 m) 

Now, all you have to do is solve it. Remeber, you would start in the parenthesis using the distributive property (PEMDAS).
5(25 mm ÷ 4 m) 
5 × 6.25 = 31.25 mm

The length of the blueprint would be 31.25 millimeters. 

I hope this helps!

Answer:

31.25 mm

Step-by-step explanation:

Use a proportion.

25 mm is to 4 m as x mm is to 5 m

25/4 = x/5

4x = 125

x = 125/4

x = 31.25

Answer: 31.25 mm

How many more equal angles does a square have than a rectangle?

Answers

it has two more equal sides

it has two!!!!!!!!!!!!!!!!!

Addition with unequal denominators 1/3+1/6=

Answers

Find a common factor of the denominators. In this case it is 6.

1/3 * 2/2 = 2 / 6

2 / 6 + 1 / 6 = 3 / 6

3/6 can be reduced to 1/2.

Hope this helps!

140 ft is 97 percent of what

Answers

Greetings!

We can solve this by creating a simple equation:
[tex]140=[/tex](97%)[tex](x)[/tex]
Convert the percent into a fraction:
[tex]140=\frac{97}{100} x[/tex]
Divide both sides by [tex]\frac{97}{100}[/tex].
[tex](140)/\frac{97}{100}=\frac{97}{100}x/\frac{97}{100}[/tex]
[tex]\frac{140}{1}*\frac{100}{97}=x[/tex]
[tex]\frac{14000}{97}=x[/tex]
The Answer Is:
[tex]144.329897=x[/tex]
[tex]x=144.329897[/tex]

140 is 97% of 144.329897.

Hope this helps.
-Benjamin


The number is 144.32 whose 97% is 140 ft .

Given,

140 ft is 97 percent of what number .

Here,

Let the number be x .

Forming the equation,

97% of x = 140

97/100 of x = 140

x = 140 * 100/97

x = 140000/97

x = 144.32

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what is the distributive property for 8 times 19

Answers

The distributive property: a(b + c) = ab + ac

8 × 19 = 8 × (20 - 1) = 8 × 20 - 8 × 1 = 160 - 8 = 152

What is the function rule for the line?

A. f(x) = 3/2x - 2
B. f(x) = -2/3x - 2
C. f(x) = -3/2x - 2
D. f(x) = -3/2x + 2

Answers

(-3,0) and (0,-2)
slope = (-2 - 0)/(0 + 3) = -2/3
b = -2
so equation
y = -2/3(x) - 2

answer
B. f(x) = -2/3(x) - 2
Let's find the slope-intercept equation of this line.  You can read off the y-intercept immediately; it's the place where x= 0 and the line crosses the y-axis.  Here that intercept is b=-2.

The coordinates of that point are (0,-2).

Now let's find the slope of the line.  Starting at (0,-2) move to the left 3 units (because -3 is the x-coordinate of the intersection of the line with the x-axis).  From (0,-2), how far UP along the y-axis to the x-axis is it?

slope = rise / run.  In this case, starting from (0,-2), and moving 3 units to the left, we get "run" = -3.  Starting from (0,-2) and moving straight up to the x-axis, we get "rise" = 2.

The slope is then m = rise / run   =  2/-3, or    m = -2/3.

Thus, the equation of this line is y = mx + b, or   y = (-2/3)x - 2.

What number is 1/10 as great as 7962

Answers

A number 1/10 as great as 7962 would be 796.2
 
   You get this answer by either dividing 7,962 with 10 which gives you 769.2

   Or you can multiply 7,962 with 1/10 to get 7,962/10. If you simplify then you get 796 1/5 or 796.2.

Answer:

796.2

Step-by-step explanation:

a number 1/10 as great as 7962 can be found in two ways the first way is

1) Divide 7962 by 10 we get 796.2

there fore 7962/10= 796.2

second way to get

2) multiply 7962 by 1/10 we again get 796.2

therefore from both the calculation a number 1/10 as great as 796.2

hope you got the point, feel free to ask doubt in comments

Order from least to greatest 0.5 0.41 3/5

Answers

Least. 0.41, 0.5, 3/5 Greatest
Least to greatest will be 0.41 0.5 3/5

3/5 is 0.6 as a decimal

What does y equal ?
4y^2= 5.76
y =

Answers

the answer is 1.2. 
so you divid 5.76 by 4, and get 1.44, and then find the square root of 1.44 which is 1.2 
Take the square root of each side and y = {-1. 2, 1. 2}hope this helps :-)

the walls of a square room need painting.Each of the four walls is 12 ft wide by 8.5 feet tall.One gallon of paint covers 75 ft.How many gallons will you need?

Answers

The walls of a room need painting. Each of the four walls is 12 ft wide by 8.5 feet tall.

We know that, Area = length [tex]\times[/tex] width.

So, the area of one wall = 8.5 ft [tex]\times[/tex] 12 ft = 102 square feet

Thus, the area of 4 walls = 4 [tex]\times[/tex] 102 = 408 square feet

One gallon of paint covers 75 square feet. We need to find how many gallons of paint will cover 408 square feet.

So, the amount of gallons of paint needed = 408[tex]\div[/tex]75

= 5.44 gallons

So, 5.44 gallons are needed to cover 408 square feet.

Final answer:

To find the number of gallons of paint needed to paint the walls of a square room, calculate the total area of all four walls and divide it by the coverage of one gallon of paint.

Explanation:

To find the total area of all four walls, we need to calculate the area of one wall and then multiply it by four. The area of one wall is the product of its width and height, which is 12 ft x 8.5 ft = 102 ft².

So, the total area of all four walls is 102 ft² x 4 = 408 ft².

Since one gallon of paint covers 75 ft², we divide the total area of all four walls (408 ft²) by the coverage of one gallon of paint (75 ft²) to find the number of gallons needed: 408 ft² ÷ 75 ft² = 5.44 gallons.

Therefore, you will need approximately 5.44 gallons of paint to paint the walls of the square room.

Other Questions
Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. The researchers grew one type of bacteria in twenty-four identical covered petri dishes. Then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. They left the remaining six petri dishes closed as a control group. When the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. The researchers concluded that not using any hand sanitizer would lead to the least bacterial growth. Which statement best explains why the researchers conclusion was not justified?A. the experiment tested too many variables.B. the control group was not treated the same as the experimental group. C. the sample size of twenty-four petri dishes is not lathe enough.D. the single type of bacteria i not adequate to making any conclusions. A group of friends are going to a cottage for the weekend. The scale used is 1 : 250,000. The distance measures 8.5cm on the map. What is the actual distance Let g(x) = 2x and h(x) = x2 + 4. Evaluate (h g)(3). A. 32 B. 16 C. 40 D. 26 a pile of newspapers in the recycling bin was 12 1/4 inches high. each week the height of the pile increases by 4 5/8 inches. what is the height of the pile after 4 weeks Which law explains why when you bump into something you fall backwards What was one of the major charecteristics of Ernest Hemingway's works? in what way can american voters bring about changes in their government Please help me I'm having problems with this question and I don't know what it is if you do answer this question I really appreciate it thanks A kind of variable that a researcher purposely changes in an investigation isconstantcontrolleddependentindependent The steepness or grade of a road is expressed as a percent. if a road rises 3 feet for every 24 horizontal feet. What is the slope of the road? what percent grade is this ? What is the principle behind the Constitution's division of power between federal and state governments?A.RepublicanismB.FederalismC.Rule of lawD.Checks and balances a partially inflated weather balloon has a volume of 1.56 * 10^3 L and a pressure of 98.9 lPa. What is the volume of the balloon when the ballon is released to a height where the pressure is 44.1 kPa What does Forrester mean when he says to write the first draft with your heart then rewrite with your head ? Which pronoun best completes this sentence? Mi hermano y yo vamos a Ecuador. _________ estamos muy emocionados. Ellos Yo Ustedes Nosotros He first term of a sequence is 2, and each subsequent term is the reciprocal of the square of the preceding term. what is the positive square root of the fifth term? a 500 G ball and a 200 g or dropped from a tower. Those balls are the same size and there is no air resistance. Which one hits the ground first?the 500 gthe 200g they both hit at the same time why musical instruments often appear in Cubist paintings. Which has more mass, a 28.0-cm3 piece of lead or a 16.0-cm3 piece of gold? the density of lead is 11.4 g/cm3; the density of gold is 19.3 g/cm3? How does a catalyst speed up chemical reactions? ________ is an unintended influence of the questioner on respondents during in-person interviews. question bias the margin of error interviewer bias self-selection Steam Workshop Downloader