Mathematics Middle School

Olivia ate four times as much salad as Reagan. If Reagan ate r salad, which equation can be used to find the amount of salad Olivia ate, v?

A. 4r = v
B. r + 4 =
C.v + 4 = r
D. 4v = r

Answers

Answer 1
the answer would be A because if she ate 4 times more then all you have to do is multiply r by four  
Answer 2

Answer:

A. 4r = v

Step-by-step explanation:

the amount of salad Reagan ate is r.

If Olivia ate 4 times as much salad as Reagan, then she ate r amount multiplied by 4:

4r

Thus, the equation than can be used to describe the amount of salad for Olivia is:

4r = v

This is because this equation tells us that 4 times the amount of salad Reagan ate (4r) is equal to what Olivia ate (v)

Related Questions

PLEASE HELP.

Jessica is filling glasses with water. Each glass holds 3/5 cup of water. She pours 4 1/5 cups of water into the glasses.

How many glasses does she fill with water?

Answers

7 cups

4 1/5= 21/5

3+3+3+3+3+3+3= 21

             7

Jessica can fill 7 glasses with water, by dividing the total amount of water ([tex]4\frac{1}{5}[/tex] cups) by the amount that each glass holds ([tex]\frac{3}{5}[/tex] cup).

The question asks us to determine how many glasses Jessica can fill with water when each glass holds [tex]\frac{3}{5}[/tex] cup of water and she has 4 1/5 cups of water in total. To solve this, we need to divide the total amount of water by the amount each glass holds.

Firstly, we need to convert the mixed number 4 1/5 cups to an improper fraction. This is done by multiplying the whole number by the denominator and adding the numerator, like this: (4 times 5) + 1 = 21, so 4 1/5 cups is the same as [tex]\frac{21}{5}[/tex]cups.

Next, we divide the total amount of water (21/5 cups) by the amount each glass holds ([tex]\frac{3}{5}[/tex] cup), which can be written as a fraction division problem:

[tex]\frac{\frac{21}{5} }{\frac{3}{5} }[/tex] = [tex]\frac{21}{5}[/tex] x [tex]\frac{5}{3}[/tex] = [tex]\frac{21}{3}[/tex] = 7

So, Jessica can fill 7 glasses with water.

Write the equation of a line with slope m that passes through the origin

Answers

This is the negative reciprocal of the slope. The solution can be obtained by solving y=−0.5x+b using the information given. It is also worth knowing that if the line passes through the origin, the y intercept is already determined (it is 0 since the linewill pass through the y axis at 0)

How to add 3/5 and 1/10 in simplest form

Answers

Find a common denominator and then add.
3/5=6/10
6/10+1/10=7/10
to add these you must have a common denominator. In this case 10 will work because both 5 and 10 can evenly go into 10. Now whatever you multiplied the bottom by to get 10 you must do the same to the top. This is shown below:
3/5+ 1/10 = 6/10+ 1/10
You can now add these together to get 7/10. This is also in the simplest form. 

Which ordered pair represents a point on the line y = 2x + 1?
A. (0, 3)
B. (2, 1)
C. (-1, -1)
D. (1, 2)

Answers

Answer:

C.

Step-by-step explanation:

The ordered pair which represents the point on the line y = 2x + 1 is C. (-1, -1).

What are the Coordinates?

Coordinates are the set of points in a geometrical plane or space, which is used to denote the exact point in the coordinate plane or space.

Given equation is y = 2x + 1.

We have to substitute each of the points in the line if the equation holds or not.

A. (0, 3)

2x + 1 = 0 + 1 = 1 ≠ 3

B. (2, 1)

2x + 1 = 4 + 1 = 5 ≠ 1

C. (-1, -1)

2x + 1 = -2 + 1 = -1

D. (1, 2)

2x + 1 = 2 + 1 = 3 ≠ 2

Hence the point on the line is C. (-1, -1).

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if a snail travels 200 inches in 2 hours, how long will it take for the snail to travel 50 inches?

Answers

It would take it 30 minutes.
30 minutes is correct

your dog's water bowl is 3/4 full. After taking a drink, the water bowl is 1/3 full. what fraction of the bowl did your dog drink?

Answers

the answer is 5/12 because you simplify it to the least denominator and that get you 9/12 - 4/12
9-4
--------- = 5/12
12

Let amount of water that , my dog's water bowl can hold=x cubic unit

Level of water upto which my dog's water bowl is filled

                                 [tex]=\frac{3x}{4} \text{Cubic unit}[/tex]

Let amount of water drank by my Dog in a drink=y cubic unit

   Writing the statement in terms of equation

    [tex]\frac{3x}{4}-y=\frac{x}{3}\\\\y=\frac{3x}{4}-\frac{x}{3}\\\\y=\frac{9x-4x}{4 \times 3}\\\\y=\frac{5x}{12}[/tex]

Fraction of the bowl did my dog drank is equal to [tex]\frac{5}{12}[/tex]

Marco wants to set up 12 small turbines with 3 blades each.If 4 wind turbines blades cost $79.64,how much will all the blade cost?

Answers

Hello!


If Marcos has 12 turbines with 3 blades / turbine, then 36 blades. If 4 blades cost $ 79.64, then how much do the 36 blades cost?

Let's make a simple three rule:

Blade ___ price

4 ----------- 79.64
36 --------- y


4 * y = 36 * 79.64
4y = 2,867.04
[tex]y = \frac{2,867.04}{4} [/tex]

y = 716.76

The 36 blades cost $ 716.76

If Marco wants to set up 12 small turbines with 3 blades each. If 4 wind turbines blades cost $79.64 then $716.76 costs for all blades.

What is Equation?

Two or more expressions connected with an equal sign is called ad equation.

Given Marco wants to set up 12 small turbines with 3 blades each. If 4 wind turbines blades cost $79.64, then we have to find the cost of all blades.

Each turbine has 3 blades, so for 12 tubines we have

3×12=36 blades.

If 4 blades cost is  $79.64, then we have to find cost of 36 blades.

Let y be the cost of 36 blades.

4 /36= 79.64/y

Use cross multiplication,

4 * y = 36 * 79.64

4y = 2,867.04

y=716.76

Therefore 36 blades cost is $ 716.76.

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25/28=375/x. Use equivalent ratios to solve the proportion.

Answers

x=420. You can find this by cross multiplying.

how do you do a 4 pound bag of sugar contains 454 one teaspoon servings and cost 3.49. A batch of muffins uses 3/4 cups of sugar. How many batches can you make if you use all the sugar what is the cost of sugar each

Answers

The number of batches you can make if you use all the sugar is 12.61 batches.

The cost of sugar used per batch is $0.28.

How many batches can you make if you use all the sugar?

A 4-pound bag of sugar = 454 one-teaspoon

Sugar used for a batch of muffins = ¾ cup

If 1 cup = 48 teaspoons

3/4 cup = 3/4 × 48

= 36 teaspoons

Number of batches to make = 454 one-teaspoon / 36 teaspoons

= 12.61 batches

Cost of sugar teaspoons= 3.49/454

= $0.007687224669603 per teaspoon

Cost of sugar per batch = 0.007687224669603 × 36

= $0.276740088105726 per batch

Hence, the cost of sugar used per batch is approximately $0.28

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A 4-pound bag of sugar contains 454 one-teaspoon servings and costs $3.49. A batch of muffins uses ¾ cup of sugar. How many batches can you make if you use all the sugar? What is the cost of sugar for each batch? (1 cup = 48 teaspoons)

To find out how many batches of muffins can be made and the cost per batch, convert the total servings of sugar to cups, then divide by the amount of sugar used per batch, and finally, divide the total cost by the number of batches. which results in approximately $0.29 per batch.

The subject of this question is Mathematics, and it appears to be at the High School level due to the application of ratios, conversions, and basic algebraic skills to solve real-world problems.

Calculating Batches of Muffins from a Sugar Bag

Firstly, we determine the total amount of sugar in the bag in terms of cups. Since 1 teaspoon is equivalent to 4 grams of sugar, and we have 454 servings, we multiply 454 by 4g to get 1816g of sugar in total. To convert grams to cups (given 1 cup of sugar is 200g), we divide 1816g by 200g/cup, which gives us 9.08 cups.

Since a batch of muffins uses 3/4 cup of sugar, we divide the total cups of sugar by 3/4 to find the number of batches. 9.08 cups divided by 3/4 cups per batch results in approximately 12.1 batches; however, since you can't make a partial batch with the remaining sugar, it is safe to say you can make 12 full batches. To find the cost per batch, divide the total cost of the bag ($3.49) by the number of batches (12), which results in approximately $0.29 per batch.

Tony is the best pizza delivery man in the city. He has been offered a job from Pizza Tent, which has given tony his pay options in the following function. S represents Tonys salary, and p represents the number of pizzas he delivers. S= 2.75 + 52

Answers

S= $54.75

Do you have to solve to get p?

3ax+2b/c=4d solve x answer

Answers

x= -2b/3ac + 4d/3a
Solve for x by simplifying both sides of the equation then isolating the variable 
Let's solve for x.3ax+2bc=4dStep 1: Multiply both sides by c.3acx+2b=4cdStep 2: Add -2b to both sides.3acx+2b+−2b=4cd+−2b3acx=4cd−2bStep 3: Divide both sides by 3ac.3acx3ac=4cd−2b3acx=4cd−2b3ac

Starting at sea level, a submarine descended at a constant rate to a depth of − 4/5 mile relative to sea level in 3 minutes.

What was the submarine's depth relative to sea level after the first minute?

Answers

if it were 4 then it would be 1 1/3 for one minute

Answer:

[tex]\texttt{Submarine's depth relative to sea level after the first minute = }-\frac{4}{15} miles[/tex]

Step-by-step explanation:

Starting at sea level, a submarine descended at a constant rate to a depth of −4/5 mile relative to sea level in 3 minutes.

Total time = 3 minutes

[tex][tex]\texttt{Total depth descended in 3 minutes = }-\frac{4}{5}miles[/tex][/tex]

We need to find what was the submarine's depth relative to sea level after the first minute,

[tex]\texttt{Depth descended in per minute = }-\frac{\frac{4}{5}}{3}=-\frac{4}{15}miles[/tex]

[tex]\texttt{Submarine's depth relative to sea level after the first minute = }-\frac{4}{15}\times 1=-\frac{4}{15} miles\\\\\texttt{Submarine's depth relative to sea level after the first minute = }-\frac{4}{15} miles[/tex]

Find the distance from the point (4, 1, −1) to the plane x − 2y + 2z + 3 = 0

Answers

I believe the answer is -17????
Distance from point (4,1,-1) to plane x-2y+2z+3 = 0 is 1. The formula for the distance from a point to a plane is d = abs(Ax + By + Cz + D) / sqrt(A^2 + B^2 + C^2) where d = distance (x,y,z) = coordinates of point A,B,C,D = coefficients of equation for the plane For this problem, the values for A,B,C,and D are A=1, B=-2, C=2, and D=3. So substituting the known values into the equation, we get: d = abs(1*x - 2*y + 2*z + 3) / sqrt(1^2 + (-2)^2 + 2^2) d = abs(1*4 - 2*1 + 2*(-1) + 3) / sqrt(1 + 4 + 4) d = abs(4 - 2 - 2 + 3) / sqrt(9) d = abs(3) / 3 d = 1

The table shows the low temperatures in Alto for 5 days.What is the average low tempreature

Answers

If you add all the numbers on the right together you get -35 then you divide by 5 which gives you the average of -7*F

Vince has 16 beads. How many different arrays can Vince draw to represent the total number of beads he has? List the sizes of the arrays.

Answers

There are 36 different arrays that Vince can draw to represent the total number of beads he has. The sizes of the arrays range from 1 to 16 beads.

To find the different arrays Vince can draw to represent the total number of beads he has, we need to consider all the possible ways he can arrange the beads. Essentially, we are looking for all the possible partitions of 16.

A partition of a number represents the different ways it can be expressed as a sum of positive integers. In this case, we want to find all the partitions of 16.

To do this, we can list all the possible sizes of arrays that Vince can draw. Here are the possible sizes:

16

15 + 1

14 + 2

13 + 3

12 + 4

11 + 5

10 + 6

9 + 7

8 + 8

14 + 1 + 1

13 + 2 + 1

12 + 3 + 1

11 + 4 + 1

10 + 5 + 1

9 + 6 + 1

8 + 7 + 1

12 + 2 + 2

11 + 3 + 2

10 + 4 + 2

9 + 5 + 2

8 + 6 + 2

7 + 7 + 2

10 + 3 + 3

9 + 4 + 3

8 + 5 + 3

7 + 6 + 3

6 + 6 + 4

9 + 3 + 3 + 1

8 + 4 + 3 + 1

7 + 5 + 3 + 1

6 + 6 + 3 + 1

8 + 3 + 3 + 2

7 + 4 + 3 + 2

6 + 5 + 3 + 2

5 + 5 + 4 + 2

7 + 3 + 3 + 3

6 + 4 + 3 + 3

5 + 5 + 3 + 3

4 + 4 + 4 + 4

So, there are 36 different arrays that Vince can draw to represent the total number of beads he has. The sizes of the arrays range from 1 to 16 beads.

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sarah has sold $33 worth of tickets sales to the comedy show. She has 4 tickets left to sell at $11 per hour

Answers

The equation would be y=11x+33.

The x can be 0, 1, 2, 3, 4. It cannot be any other number than these 5.
Y is just whatever you get when you plug the x in for 0, 1, 2, 3, or 4

Answer:

The domain of the function is {0,1,2,3,4} and the range of the function is {$33, $44, $55, $66, $77}

Step-by-step explanation:

Consider the provided information.

Sarah has sold $33 worth of tickets sales to the comedy show. She has 4 tickets left to sell at $11 per hour.

First write the function as shown.

Let the number of tickets are x and she already sold $33 worth of tickets.

Therefore the function is: [tex]f(x)=11t+33[/tex]

For t=0

[tex]f(0)=11(0)+33=33[/tex]

For t=1

[tex]f(1)=11(1)+33=44[/tex]

For t=2

[tex]f(2)=11(2)+33=55[/tex]

For t=3

[tex]f(3)=11(3)+33=66[/tex]

For t=4

[tex]f(4)=11(4)+33=77[/tex]

Hence, the domain of the function is {0,1,2,3,4} and the range of the function is {$33, $44, $55, $66, $77}

Max's bill at a restaurant is $8.67. He uses the following method to figure out a tip of about 15%. Round the amount of the bill to the nearest ten cents. Move the decimal point one place to the left. Then find half of the result. Add the last two answers and round to the nearest five cents. How much will the tip be for the bill? Why does Max's method work?

Answers

x=1.30 is the answer! hope its not too late to help

Sharon called 3 friends on Friday. On Saturday, each of those 3 friends called 3 different friends. On Sunday, each person who was called on Saturday called 3 different people.

How many friends were called on Sunday?

Answers

there was 27 people called on Sunday because its
3 x 3 = 9 for Saturday
 then 9 x 3 =  27 for Sunday 

The number of friends that were called on Sunday are 27 friends.

On Friday, the number of friends Sharon called = 3 friends

On Saturday, the number of each of those 3 friends called 3 different friends.

Therefore the number of friends on Saturday = 3×3

= 9

The number of friends called on Sunday = 9 × 3

= 27

Therefore the number of friends called on Sunday= 27

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Which best describes the set of odd numbers between zero and ten?

Null set

{-9,-7,-5,-3,-1,1,3,5,7,9}

{1,3,5,7,9}

All real numbers

Answers

I believe it is all real numbers, but get an approval from someone else first

Max makes and sells posters. The function p(x)= -10x^2 +200x -250, graphed below, indicates how much profit he makes in a month if he sells the posters for 20-x dollars each. (Picture in comments) What should Max charge per poster to make the maximum profit, and what is the maximum profit he can make in a month? A: $800 at $10 per poster B: $800 at $5 per poster C: $750 at $10 per poster D: $750 at $5 per poster

Answers

Here is our profit as a function of # of posters
p(x) =-10x² + 200x - 250
Here is our price per poster, as a function of the # of posters:
pr(x) = 20 - x
Since we want to find the optimum price and # of posters, let's plug our price function into our profit function, to find the optimum x, and then use that to find the optimum price:
p(x) = -10 (20-x)² + 200 (20 - x) - 250
p(x) = -10 (400 -40x + x²) + 4000 - 200x - 250
Take a look at our profit function. It is a normal trinomial square, with a negative sign on the squared term. This means the curve is a downward facing parabola, so our profit maximum will be the top of the curve.
By taking the derivative, we can find where p'(x) = 0 (where the slope of p(x) equals 0), to see where the top of profit function is.
p(x) = -4000 +400x -10x² + 4000 -200x -250
p'(x) = 400 - 20x -200
0 = 200 - 20x
20x = 200
x = 10                         
p'(x) = 0 at x=10. This is the peak of our profit function. To find the price per poster, plug x=10 into our price function:
price = 20 - x
price = 10
Now plug x=10 into our original profit function in order to find our maximum profit:
p(x)= -10x^2 +200x -250
p(x) = -10 (10)² +200 (10) - 250
p(x) = -1000 + 2000 - 250
p(x) = 750

Correct answer is C)

Answer:

$750 at $10 per poster

Step-by-step explanation:

Use properties of equality to solve these equations. Identify the properties used and describe how you used them.
(–5 • 7)25 = x(7 • 25)

Answers

step 1 Distributive step 2 Multiplication property of equality step 3 Multiplication property of equality.step 4 Division property of Equality The answer would be 125=x 
 
 



What is the estimat of 1,537×242 need answer aspA

Answers

Round 1,537 to 1,500
Round 242 to 250
1,500 x 250 = 375,000
what I do to solve these problems is you solve the equation and if the answer you got from solving the equation isn't there then choose the answer that is closest to your answer.

At 5 a.m., the temperature at an airport was −9.4°F . Six hours later, the temperature was 2.8°F . Which expression represents the total temperature change over the six hours?

|2.8−(−9.4)|
−9.4+2.8
|−9.4+2.8|
|2.8+(−9.4)|

Answers

-9.4 + x6 = 2.8 this is an equation for the question

Answer:

Your answer is B

1. Refer to the equation 2x − 6y = 12.
(a) Create a table of values for at least 4 points. Show your work.
(b) Use the table of values to graph the line.

Answers

X values: 12,15,18,21
Y values: 2, 3, 4, 5

They go with each other.
2(12)-6(2)=12
1) 24-12=12
2(15)-6(3)=12
2) 30-18=12
2(18)-6(4)=12
3) 36-24=12
2(21)-6(5)=12
4) 42-30=12

Jeremy earns $234 for 36 hours of work. Miguel earns $288 for 40 hours of work . Are the pay rates of these two people proportional?

Answers

The pay rates of these two people are not proportional because if you divide 234 by 36 and 288 by 40, it is shown that Miguel earns $7.20 every hour and Jeremy earns $6.50 per hour. Thus, the pay rates of these two people are not proportional.

Mariah borrowed 15 books from the library last month. She's already read 2/5 of them. How many of the 15 books has she read?

Answers

She has read 6 of the books from the library.

The answer is:  "6 (six) books" .
___________________________________________
Explanation:
___________________________________________
The number of books is:  "(⅖)*15" .
___________________________________________
Method 1)
___________________________________________
   [tex] \frac{2}{5} [/tex] * 15 =  [(15 ÷ 5) * 2] = 3 * 2 = 6 .
___________________________________________
Method 2) 
___________________________________________

[tex] \frac{2}{5} [/tex] * 15 ;

= [tex] \frac{2}{5} [/tex] * [tex] \frac{15}{1} [/tex] ;

= [tex] \frac{2*15}{5*1} [/tex] = [tex] \frac{30}{5} [/tex] = 6 .
_________________________________________________

Method 3)
_________________________________________________
[tex] \frac{2}{5} [/tex] * 15 ;

= [tex] \frac{2}{5} [/tex] * [tex] \frac{15}{1} [/tex] ;

   → At this point, we can "cancel out" the "5" to a "1"; &
                            we can "cancel out" the "15" to a "3" ; 

                         → {Since:  "15 ÷ 5 = 3" ;  and since: "5 ÷ 5 = 1"}.

  → And rewrite as: = [tex] \frac{2}{1} [/tex] * [tex] \frac{3}{1} [/tex] ;

                    → At this point, we can rewrite as:

                                 " 2 * 3 " ;   and:  "2 * 3 = 6 " . 

             →  {since: "any value, divided by "1", equals that same value};

As such:  " [tex] \frac{2}{1} [/tex] = 2 ";  AND:  [tex] \frac{3}{1} [/tex] = 3 .

→  So: [tex] \frac{2}{1} [/tex] * [tex] \frac{3}{1} [/tex]  = {2 * 3} = 6 .

→ Alternately, we can continue as follows:

[tex] \frac{2}{1} [/tex] * [tex] \frac{3}{1} [/tex] ;

=  [tex] \frac{2*3}{1*1} [/tex] = [tex] \frac{6}{1} [/tex] = 6 .
______________________________________________________       
 
Method 4)
_____________________________________________________

[tex] \frac{2}{5} [/tex] * 15 ;

           = [tex] \frac{2}{5} [/tex] * [tex] \frac{15}{1} [/tex] ;

           = [tex] \frac{2*15}{5*1} [/tex] 

               →  At this point, we can "cancel out" the "15" in the numerator to a "3"; & we can "cancel out" the "5" in the denominator to a "1" ;
                 {Since:  "15 ÷ 5 = 3" ; and since:  "5 ÷ 5 = 1" ;

               → and rewrite as follows:

               →  [tex] \frac{2*3}{1*1} [/tex] ;

           → At this point:  since:  "2 * 3 = 6" ;  &  since "1*1 = 1" ;
   
             We can rewrite as:    

→  [tex] \frac{2*3}{1*1} [/tex]   =  [tex] \frac{6}{1} = 6 .

Alternately, at the point when we have:

→  [tex] \frac{2*3}{1*1} [/tex]  ;  

→  We can ELIMINATE the "denominator" completely; 
Since the denominator, "(1*1)" is equal to "1" ; and since any value (e.g. the "numerator"); divided by "1" (e.g. the value of the denominator); equals the same value (e.g. that same value of the numerator);

As such, we can rewrite; and simplify; our expression (as follows):

   →  [tex] \frac{2*3}{1*1} [/tex]   = { 2 * 3 }  = 6 .
_________________________________________________
  
Method 5)
_________________________________________________

[tex] \frac{2}{5} [/tex] * 15 = ?

→ Convert "[tex] \frac{2}{5} [/tex]" to a decimal value:

Note:   [tex] \frac{2}{5} [/tex]  = ? / 10  ??? 

What value belongs in the "question mark" ??

→ Let us examine the denominators.

We have "5" and "10". 
→ 5 * (what value?) = 10?  (answer: "2" , by recognition);

→Nonetheless, to get that value:  "10 ÷ 5 = ? " ;  The answer is: "2" ; 

→ To confirm:  "5 * 2 =? 10?  Yes!

→ As such:  [tex] \frac{2}{5} [/tex] ;
           
                =  [tex] \frac{2*2}{5*2} [/tex] ;
                        
                = [tex] \frac{4}{10} [/tex] ; 

Convert this value to a decimal value; 
               
     →   4/10 =  4 ÷ 10 ;  
          → To divide by "10" ; Take the decimal value (The decimal value in "4" is considered the value "directly after the "4"); and move that value backward ONE decimal space; {since we are DIVIDING by "10" ; and "10" has ONE "zero"};  to get: ".4" ;   → Write as:  "0.4"  ;
 
        → [tex] \frac{2}{5} [/tex]  = [tex] \frac{4}{10} [/tex] =  0.4  .

Alternately, use a calculator to convert "[tex] \frac{2}{5} [/tex]" to a decimal value:

      →  [tex] \frac{2}{5} [/tex]  =  2 ÷ 5 = 0.4 .

Now, we can rewrite:

     →   [tex] \frac{2}{5} [/tex] * 15  ;

as:  "(0.4)(15)" ; & calculate:
 
      → (0.4)(15) = 6 .
_______________________________________________
 
 The answer is:  "6 (six) books" .
_______________________________________________

Diana and Sujit clean homes for a summer job they charge $70 for the job plus 5% for supplies. A homeowner gave them a 15% tip. Did they receive more than $82 for their job? Explain.

Answers

I'm sorry I don't know that

776 DIVIDED BY 28 COMPATIBLE NUMBERS

Answers

I think the answer will be 28 if you will round it

Answer:

27.7 or 28

Step-by-step explanation:

which of the following uses a variable to represent a person a place or thing that is unknown

Answers

Ah, I think you may have forgotten to include something in your question, but any letters are likely the variables of which they speak.

Answer: Mr. X

Step-by-step explanation: Unknown Person (variable)

FILL IN THE BLANK 1. x-7>10 X>______ 2. 3x ≤ 21 x ≤_____ 3. 5a-2<18 a<_____ 4. 2t + 8 ≥ -4(t+1) t≥______

Answers

are you converting to interval notation or solving for x? 

Answer with Step-by-step explanation:

1. x-7>10

Adding 7 on both sides,we get

x>17

2. 3x ≤ 21

Dividing both sides by 3,we get

x≤7

3. 5a-2<18

Adding 2 on both sides, we get

5a<20

Dividing both sides by 5,we get

a<4

4. 2t + 8 ≥ -4(t+1)

Distributing -4 on right hand side of inequality

2t+8 ≥ -4t-4

2t+4t ≥ -4-8

6t ≥  -12

Dividing both sides by 6, we get

t ≥ -2

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