# Marcy has total of 100 dimes and quarters. If the total value of the coins is $14.05, how many quarters does she have?

##### 2 Answers

Sep 4, 2016

Marcy has

#### Explanation:

Write a systems of equations.

Let

Solve by substitution:

Solve for

Hence, Marcy has

Hopefully this helps!

Sep 4, 2016

If she had only dimes she'd have

#### Explanation:

Every time she substitutes one dime for a quarter, she adds

So she will have to substitute

Answer: she has 27 quarters.