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kvasek [131]
4 years ago
14

Devon has 80 books to pack in boxes she packs 20 books in each box how many boxes does she need? Write an equation using the let

ter n to stand for the unknown factor explain how to find the unknown factor
Mathematics
2 answers:
Tanzania [10]4 years ago
7 0
B = boxes
80 ÷ 20 = b
80 ÷ 20 = 4
To make it easy you can do 8 ÷2 = 4 which makes the same answer :)
She needs 4 boxes
seropon [69]4 years ago
7 0
Hello there,

Using variables we can use the equation 20*n=80, or 80÷n=20. Solving one of these equations, the answer is n=4. Hope this helps!

~Brainliest
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Paul's budget for food is 30% of the budget he has for rent.
SpyIntel [72]

Paul's rent budget is <u>$750</u>, given that his food budget of $225, is 30 percent of his rent budget.

<h3> What are fractions?</h3>

Fractions are representation of quantities as a part of a certain quantity.

Written as <u>a/b</u>, read as <u>a by b</u>, and functions as <u>a divided by b</u>, represents a fraction showing a parts of b equal parts.

a is called the numerator, and b is called the denominator.

<h3>What are percentages?</h3>

Percentages are modified fractions where the whole quantity is represented by 100.

To convert a fraction into percentages we multiply it by 100, while to convert percentages to fraction divided by 100.

<h3>How to solve the question?</h3>

In the question, we are given that Paul's budget for food is 30% of the budget he has for rent.

We are asked if his budget for food is $225, what is his budget for rent.

We assume Paul's budget for rent to be $x.

We know that Paul's food's budget is 30 percent of his rent.

Hence, Paul's food budget = 30% of x.

or, Paul's budget for food = 30/100 * x {To convert percentages to fraction divided by 100}

But, we know that Paul's food budget is $225. Thus, we can show that:

225 = 30/100 * x,

or, x = (225*100)/30 = 750.

Thus, Paul's rent budget is <u>$750</u>, given that his food budget of $225, is 30 percent of his rent budget.

Learn more about percentages at

brainly.com/question/843074

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2 years ago
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real numbers hope it helps

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3 years ago
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Sorry I can’t explain this very well but it would be 50 because the rate is 240:10, 240x5= 1,200, so 10x5 would get you the gallons of gasoline she uses.
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RideAnS [48]

Answer:

3/4

Because 6 are not white so 6/8 and divide each by 2

6 divided by 2 = 3

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= 3/4

Step-by-step explanation:

Hope this helps her!!!

4 0
3 years ago
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The product of 6 and the sum of 3 times a number n and 5
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Answer:

Step-by-step explanation:

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