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Plz answer number 3 for me thx

Plz answer number 3 for me thx-example-1
User Kingtorus
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1 Answer

5 votes

Answer:

10 quarters

Explanation:

When given a ratio and one number, your goal is to scale up the ratio such that you keep the proportions equal.

The overarching proportion is 3 dimes : 2 quarters. This means that for every 2 quarters, there are three dimes.

When solving this kind of problem, you want to construct two ratios that equal one another, with the unknown value set equal to X.

Here,

3 dimes = 15 dimes

2 quarters X quarters

To solve, cross multiply, meaning multiply the numerator of one equation by the denominator of the other, and vice versa.

3X = 30

Now solve for X by dividing each side by 2

X = 10

User Vilhelm
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