Question

When Julio cracked open his piggy bank, he
found 94 coins all quarters and dimes. He
found that he had $17.20. How many
quarters and how many dimes did Julio have?
=
Let
Let
Equation:
Equation:
Sentence:

Answer 1

Answer:

52 quarters, 42 dimes

Step-by-step explanation:

Let's call the number of quarters q, and the number of dimes d.

q+d=94

0.25q+0.1d=17.20

Subtract q from both sides of the first equation to isolate d:

d=94-q

0.25q+0.1(94-q)=17.20

0.25q+9.4-0.1q=17.20

0.15q=7.8

q=52

d=94-q=42

Hope this helps!