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Chapter 3: Q. 167 (page 351)

Rachelle has $6.30 in nickels and quarters in her coin purse. The number of nickels is twice the number of quarters. How many coins of each type does she have?

Short Answer

Expert verified

The number of quarters is18and nickels are36

Step by step solution

01

Step 1. Given Information

The total amount of money=$6.30

Let he number of quarters be x

Therefore ,

According to the question,

number of nickels will be2x

02

Step 2. Solution of the equation 

Now, According to the question,

0.25x+0.05(2x)=6.300.25x+0.1x=6.300.35x=6.30x=18Therefore,2x=36

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