Answer:
24 1/2 minutes
Step-by-step explanation:
10 problems in 7 minutes
5 problems in 3 1/2 minutes
multiply 5 × 7 (5×7 = 35) to get 35
multiply (or add) 3 1/2 minutes times 7 (or add it together 7 times
Answer:
24.5 minutes.
Step-by-step explanation:
10 / 7 = 35 / x
7 x 35 = 245
245 = 10x
245/10 = 24.5
Feel free to let me know if you need more help. :)
What operation should you perform first when you evaluate the expression 85+(9−25×5)÷3
46.33
fdsgsdgsdgsdgdsgsdgsdg
Answer:
Follow the rules of PEMDAS, so start with whats in the ()
Step-by-step explanation:
1. Multiply 25x5
2. Then subtract 9-125=-116
3. The -116÷3
4. Add 85
5. Answer 46.33 or 139/3Hope this helps!!!5. Investment account 1 starts with a balance of $200 and doubles every year. Investment account 2 starts with $1,000 and increases by $100 each year.
a. How long does it take for each account to double?
b. How long does it take for each account to double again?
c. How does the growth in these two accounts compare? Explain your reasoning.
Help Me PLSSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!
Answer:
a. Account 1: 1 year Account 2: 10 years
b. Account 1: 2 years Account 2: 30 years
c. The first account grows exponentially, while the second one grows at a linear rate. Therefore, over time the first account tends to surpass the second one in value.
Step-by-step explanation:
The first account can be modeled by using a compounded formula with 100% rating, since it doubles every year. The formula is shown below:
M = C*(1 + r)^t
Where M is the final amount, C is the initial amount, r is the interest rate and t is the elapsed time. If r = 1, then it doubles every year, so we have the following expression for the first account:
M = 200*(2)^t
While the second acount grows at a steady rate of $100, therefore it can be modeled by the initial amount added by the growth rate multiplied by the elapsed time as shown below:
M = 1000 + 100*t
a. The first acount take 1 year to double, since it doubles every year.
In order for the second acount to double it needs to reach M = 2000, so we have:
2000 = 1000 + 100*t
100* t = 2000 - 1000
100*t = 1000
t = 10
It will take 10 years to double.
b. The first account will double again in 1 more year, so 2 years total.
The second account will need to reach M = 4000, therefore:
4000 = 1000 + 100*t
100*t = 4000 - 1000
100*t = 3000
t = 30
It'll take 30 years total for the second account to double again.
c. Since the first account grows exponentially it grows at a faster rate in comparison to the second one that grows linearly over time. Therefore over time the first account tends to surpass the second one in value.
In this exercise we will have to use the knowledge of finance to calculate the income time in this way we can say that:
a. [tex]Account 1: 1 year \\Account 2: 10 years[/tex]
b. [tex]Account 1: 2 years\\ Account 2: 30 years[/tex]
c. The first account grows exponentially, while the second one grows at a linear rate.
Then writing the yield formula as:
[tex]M = C*(1 + r)^t[/tex]
Where:
M is the final amountC is the initial amountr is the interest ratet is the elapsed timeIf r = 1, then it doubles every year, so we have the following expression for the first account:
[tex]M = 200*(2)^tM = 1000 + 100*t[/tex]
a. In order for the second acount to double it needs to reach M = 2000, so we have:
[tex]2000 = 1000 + 100*t100* t = 2000 - 1000100*t = 1000t = 10[/tex]
b. The second account will need to reach M = 4000, therefore:
[tex]4000 = 1000 + 100*t100*t = 4000 - 1000100*t = 3000t = 30[/tex]
c. Since the first record of finances evolve exponentially it become larger at a faster rate distinguished to the second individual that evolve linearly over opportunity. Therefore over opportunity the first fees be apt to outdo something or someone the second individual fashionable advantage.
See more about finances at brainly.com/question/10024737
n...
Select the best answer for the question
13. Which of the following is an example of a proper fraction?
.
O A. 4
O B.76
O c. 4/4
O D.43
eh...
Each of 4 tables at a party is set with a bowl of grapes. Each
bowl contains 5/8 of a pound of grapes. How many pounds of
grapes are there altogether? Show your work.
Answer:
2.5
Step-by-step explanation:
youll have to multiply 4 times 5/8
then p=3.
Use the equation k = 3n to find the value of k when n = 3.
Answer:
k = 9
Step-by-step explanation:
n = 3, so substitute 3 for n in the equation
k = 3(3)
k = 9
Please help! Will mark brainliest
Answer:
0 ≤ x ≤ 4
Step-by-step explanation:
we are asked to find all the values of x such that y>0.
for y>0, this means that we will only consider the portion of the graph that is above the x - axis (i.e the part of the graph above y=0)
By observation, we can see that the graph is only above the x-axis between the interval 0 ≤ x ≤ 4 (which is the answer to your question)
what is -2.25w ≥ 13.5?
Answer:
w < (line under the sign) -6
Step-by-step explanation:
Which is the angle of elevation from Kelley to the top of the waterfall? ∠7 ∠5 ∠8 ∠6
Answer:
∠6
Step-by-step explanation:
The angle of elevation is the angle between an horizontal line and the line from the object to the observers eyes. The line from the object is above the horizontal line. The angle of elevation denotes the angle from the horizontal upward.
The first picture below is where your question emanated .The second picture describes the angle of elevation. The angle of elevation from kelley to the top of the waterfall is ∠6.
If a box of 100 pencils cost $4.75, what should you expect to pay for 225 pencils?
Answer:
$ 10.69
Step-by-step explanation:
225 is 2.25 times the 100 pencils. ( 225/100) So all you have to do is multiply 2.25 the price ($4.75) and you get 10.6875, money can only go to the tenth place so you round it to $10.69
Hope this helped and pls mark as brainliest!
~Luna
What is the perimeter of the given composite figure
Answer:
The perimeter of the given composite figure is:
106 ydStep-by-step explanation:
The perimeter is defined as the sum of the sides in a figure, therefore, what you should do in this exercise is to add all the yards of the sides of the compound figure, however, you should notice that there are two sides of which They do not give you the measurement and you must identify it based on the sides that do have it, which would be:
Vertical line measurement = (19 + 4-17) yards Vertical line measurement = 6 yardsIn the previous case, the two measures on the other side that are complete are used, which are 19 yards and 4 yards respectively, then the measurement that is on our same side (17 yards) is subtracted and thus we obtain the value of the vertical line that it did not have, now that of the horizontal line:
Horizontal line measurement = (30-12-15) yards Horizontal line measurement = 3 yardsIn this case, something similar was done, the total measurement of the base was taken and the measurements of the upper zone were subtracted, with which the measurement of the remaining zone was found.
All the measures are added together:
The perimeter of the figure = 30 yd + 17 yd + 12 yd + 6 yd + 15 yd + 4 yd + 3 yd + 19 yd = 106 ydAnswer:
934
Step-by-step explanation:
Im so confused please help!
Answer:
18
Step-by-step explanation:
The area of a triangle is given by
A = 1/2 bh where b is the base and h is the height
The base length is 6 and the height is 6
A = 1/2 (6) * 6
A =18
Answer:
B. 18 units²
Step-by-step explanation:
You find the area of the triangle with the dotted lines first:
[tex]\frac{1}{2}[/tex]*b*h
[tex]\frac{1}{2}[/tex]*9*6=
27
The area of the triangle including the dotted lines is 27 units²
Now we need to find the area of the small dotted triangle using the solid line triangle as a hypotenuse.
[tex]\frac{1}{2}[/tex]*b*h
[tex]\frac{1}{2}[/tex]*3*6=
9
The area of the small dotted triangle is 9 units²
To find the area of the solid lined triangle, you need to subtract the area of the small dotted line triangle (9 units²) from the triangle with the dotted lines (27 units²) which is:
27-9=18
The solid lined triangle is 18 units²
What two numbers multiply together to get -42 and add up to be -1?
Answer:
-7 and 6
Step-by-step explanation:
You can solve this problem by setting up a system of equations. Lets call the first number x, and the second number y. Now:
x*y=-42
x+y=-1
You can subtract y from both sides of the second equation to get x=-y-1, which you can then substitute into the first:
(-y-1)*y=-42
-y^2-y=-42
y^2+y-42=0
Solving the quadratic equation:
(y-6)(y+7)=0
y=-7 or 6
x= 6 or -7
When one of the numbers is -7, the other is 6, and when it is 6, the other is -7. Hope this helps!
PLS HELP ME PLS I'M GOING TO FAIL THIS!!!!!
Answer:
1. 27
2. 63
3. 135
4. 28
5. First answer choice
Step-by-step explanation:
I can explain any specific problem in the comments if you'd like, but explaining all 5 would take too long. Hope this helps!
Somebody please help. Hurry!
Answer:
A. 30.27
Step-by-step explanation:
because it is 30.27Answer:
the answer is A.
Step-by-step explanation:
URGENT!!! Which is a y-intercept of the graphed function?
(-9, 0)
(-3, 0)
(0, -9)
(0, -3)
The y-intercept is where the graph goes through the y-axis (the vertical line in the center). It goes through at y=-9, so the coordinates would be (0,-9), since it is (x,y).
Answer:
The y-intercept is (0, -9)
Step-by-step explanation:
A rectangle has a perimeter of 6 feet.
Choose all the possible dimensions of the rectangle.
Given PQ | | ST
Triangle P Q R. Side P Q is 16 kilometers and side P R is 24 kilometers. Triangle S R T. Side R T is 33 kilometers.
What is the distance of Line S T?
7 km
StartFraction 128 Over 11 EndFraction km
22 km
49.5 km
The answer is C = 22km
Final answer:
To determine the distance of line ST, we use the fact that triangles PQR and SRT are similar, which allows us to set up a proportion with the given side lengths. Solving this proportion reveals that the length of ST is 22 kilometers.
Explanation:
To find the distance of line ST, we need to recognize that if lines PQ and ST are parallel (PQ | | ST) and we are given the lengths of the sides PQ and PR in triangle PQR and side RT in triangle SRT, we can infer that triangles PQR and SRT are similar by the Angle-Side-Angle (ASA) postulate since they share angle P (or R in triangle SRT) and have proportional corresponding sides.
Using the lengths PQ = 16 kilometers and PR = 24 kilometers from triangle PQR and RT = 33 kilometers from triangle SRT, we can set up a proportion to solve for the unknown length ST.
The proportion based on the similarity of triangles is:
PQ/PR = ST/RT
Substituting the given values, we get:
16/24 = ST/33
Solving for ST, we multiply both sides by 33:
ST = 33 * (16/24) = 22 kilometers.
Therefore, the distance of line ST is 22 kilometers.
What are the solutions to x3=5−5i in polar form
a. 52‾√3cis(23π12)
b. 52‾√3cis(5π4)
c. 50‾‾‾√6cis(23π12)
d. 50‾‾‾√6cis(7π12)
e. 50‾‾‾√6cis(4π3)
f. 50‾‾‾√6cis(5π12)
g. 50‾‾‾√6cis(5π4)
h. 52‾√3cis(7π12)
i. 52‾√3cis(5π12)
The solutions to x^3 = 5 - 5i in polar form are √50cis(-π/12), √50cis(4π/3), and √50cis(5π/12).
Explanation:To find the solutions to the equation x^3 = 5 - 5i in polar form, we can start by converting the complex number 5 - 5i into polar form.
The magnitude (r) of the complex number can be found using the equation r = √(a^2 + b^2), where a is the real part and b is the imaginary part. In this case, the magnitude is √(5^2 + (-5)^2) = √(25 + 25) = √50.
To find the argument (θ), we can use the equation θ = tan^(-1)(b/a), where b is the imaginary part and a is the real part. In this case, the argument is tan^(-1)(-5/5) = tan^(-1)(-1) = -π/4.
Therefore, the complex number 5 - 5i in polar form is represented as √50cis(-π/4).
To find the solutions to x^3 = 5 - 5i, we can take the cube root of both sides of the equation. Using De Moivre's Theorem, we can express the cube root of the complex number in polar form as the cube root of the magnitude raised to the power of 3, and the argument divided by 3.
Therefore, the solutions to x^3 = 5 - 5i in polar form are:
a. √50cis(-π/12)
e. √50cis(4π/3)
i. √50cis(5π/12)
Answer:
[tex] \sqrt[6 ]{50} cis( \frac{7\pi}{12} ) \sqrt[6]{50} cis( \frac{23\pi}{12} ) \sqrt[6]{50} cis( \frac{5\pi}{4} )[/tex]
Which describes the correlation shown in the scatterplot?
A) there is a positive correlation in the data set
B) there is a negative correlation in the data set
C) there is no correlation in the data set
D) more points are needed to determine the correlation
There is a negative correlation in the data set, Option B is correct.
As per the question, it is to be determined which correlation is shown in the scatterplot.
What is a scatter plot?The association between two numerical variables measured for the same individuals is displayed in a scatterplot. One variable's values are displayed on the horizontal axis, and the other variable's values are displayed on the vertical axis.
Here,
In the scatter, plot the graph of the points shows a decline while moving on the positive x-axis. Thus the negative correlation is plainly going down, starting at the top left and moving down to the bottom right.
Thus, there is a negative correlation in the data set, Option B is correct.
Learn more about scatter plots here:
https://brainly.com/question/13984412
#SPJ2
The length of a rectangle is 1 ft less than 3 times the width. The area is 310 ft^2. Find the dimensions of the rectangle.
Answer:
Length = 32 ft
Width = 10 1/3 ft
Step-by-step explanation:
Four times a number less 6 is 8 more than twice that number. find the number.
Answer:
Four times a number less 6 is 8 more than twice that number. find the number. Denote that number: a, we have:
a x 4 - 6 = a x 2 + 8
=> a x 2 = 6 + 8 =14
=> a = 14/2 = 7
Hope this helps!
:)
Which expression has a value greater than 9.862?
Answer:
the answer is D
Step-by-step explanation:
9,862 times 2/2 = 9862 so that doesn't work
but 9,862 times 4/2 = 19724 and that is greater than 9,862.
Answer: D) 9,862 * [tex]\frac{4}{2}[/tex]
Step-by-step explanation: If a number is not greater than one, then the number will actually decrease. Let's turn [tex]\frac{4}{2}[/tex] into a decimal.
4 ÷ 2 = 2
9,862 * 2 = 19,724
I hope this helps!
Cindy bought an item from the store. The cashier charged her $22.42 which included the original price of the item plus 7% state sales tax. What was the original price of the item? Your answer must be correct to the penny and must be stated as an amount of money
Need help ASAP please
Adding a value at the end shifts the graph up that number of units.
The answer is C.
What do both of these functions have in common?
f(x) = 3/2lx-7l -2
0(x) = 1.51n(x - 2) +7
O
A. They have the same horizontal translation
O
B. They have the same vertical shift
O
C. They have the same vertical stretch
O
D. They have the same end behavior
Answer:
C
Step-by-step explanation:
Here are the numbers on a table that shows student's scores for 10 rounds of a video game.
130,150,120,170,130, 120, 160, 160, 190, 140
What is the median score?
A-125
B-145
C-147
D-150
Answer:
B-145
Step-by-step explanation:
120-190 is the spread in the middle is 145
Answer:
B- 145
Step-by-step explanation:
hoped this helped!
Nathan has a rectangular plot of grass in his backyard that has dimensions of meters in width and meters in length. What is the total area of the plot of grass? Recall that the area of a rectangle is the width multiplied by the length.
Step-by-step explanation:
This problem bothers on the mensuration of flat shapes, a rectangle.
We know that the area of a rectangular shape is
Area =length x width
Since we don't have any specific data regarding Nathan's plot of land
Let's assume some figure for better understanding
Say the length is 18m
And the width is 12m
Area = 18*12
Area= 216m²
Answer:
its B on edge
Step-by-step explanation:
What is the diameter of a circle with circumference 57.52 m?
Answer:
18.31 meters
Step-by-step explanation:
Use the circumference formula C =2πr = dπ
C = 57.52 m = dπ
d = 57.52 m / π = 57.52 / 3.1415926= 18.308 m.
What is the quotient of 5/6÷3/4?
Answer:
20/18
Step-by-step explanation:
Answer:
1 1/3
Step-by-step explanation:
At its coldest, Mercury's surface temperature is 300
degrees Fahrenheit below zero. Negative or positive
Answer:
This would be a negative
Answer:
Negative because it says ¨below zero¨ clarifying it is, indeed, a negative.