MATHEMATICS MIDDLE SCHOOL

What is the answer 6.25=r2

Answers

Answer 1
Answer: 6.25=r2
Divide both sides by 2
3.125=r2/2
2'a cancel out
3.125=r
Answer 2
Answer: The opposite of multiplication is division, so you divide 2 from both sides.R2/2 = cancel out6.25/2 = 3.125R = 3.125

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Fran cut her sandwich into 6 pieces. If Fran ate 1/3 of her sandwich, how many pieces did he eat?

Answers

2 pieces :)  

Not sure if you wanted work but here is my explanation:

there are six pieces that she cut out, and she ate 1/3 of the six pieces,

1/3=2/6

since there are 6 pieces 1/3 would then equal 2 pieces. :)

Hope this helps:)
2 because 1/3 is equal to 2/6

On the previous problem, you found a unit rate of ounces per box. Explain how you find a unit rate when given a rate.

Answers

Answer:

A unit rate is a rate with 1 in the denominator. If you have a rate, such as price per some number of items, and the quantity in the denominator is not 1, you can calculate unit rate or price per unit by completing the division operation: numerator divided by denominator.

Answer:

First, I would write the rate as a fraction. Then I would divide the numerator by the denominator.

Step-by-step explanation:

this is the sample response on e2020.

Hope it helps :D

Find two numbers that add up to 180

Answers

There are many combinations of two numbers possible that give the sum as 180. Example, 177+3 = 180,174+6 = 180,177+9 = 180,etc. You can make as many combinations because its very general term for any two number to add upto 180.

a bookcase has 4 shelves the bottom shelf has 10 books each of the other shelves has 5 more books than the shelf below it how many books are in the bookcase

Answers

all you do is add. the answer is 55. you add 15 + 15 + 15 + 10 = 55

(Hope this helps)

juan received a paycheck of $185 from his job he spend 1/4 of his paycheck on clothes and then spend $8.25 for Lunch how much of his paycheck did juan spend? someone HELP

Answers

He receives $185

He spent 1/4 of his paycheck on clothes, that is, = 1/4 *185 = 46.25

$8.25 for lunch.

Total spent =  8.25 + 46.25 = 54.50.

So he spent   $ 54.50 of his salary
1/4 = 46.25
lunch = 8.25
add them together 
50.50
Now take that away from 185 and that makes 
134.50

Word problem on direct variationmoving object, the force acting on the object varies directly with the object's acceleration. When a force of 100 N acts on a certain object, the accelerati
object is 10 m/s. If the force is changed to 90 N, what will be the acceleration of the object?

Answers

Answer:

acceleration would be 9 meters per second squared

Step-by-step explanation:

If quantity "A" varies directly with quantity "B", then we can write:

A = kB

Now, this problem says that force (f) varies directly with acceleration (a). So we can write:

f = ka

Given f = 100 and a = 10, so we substitute and find k (the proportionality constant). Shown below:

f = ka

100 = k(10)

k = 100/10

k = 10

So, we have

f = 10a

Now, force is 90, so what's the acceleration?

90 = 10a

a = 90/10

a = 9

So, the acceleration would be 9 meters per second squared
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