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How do you do this problem?
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How do you do this problem?

How do you do this problem?-example-1
User Itamaram
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2 Answers

3 votes
25 quarters and ten dimes Your welcome
User Bubi
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8.2k points
2 votes
d + q = 35....d = 35 - q
0.10d + 0.25q = 7.25

0.10(35 - q) + 0.25q = 7.25
3.50 - 0.10q + 0.25q = 7.25
-0.10q + 0.25q = 7.25 - 3.50
0.15q = 3.75
q = 3.75/0.15
q = 25

d + q = 35
d + 25 = 35
d = 35 - 25
d = 10

so there are 25 quarters and 10 dimes
User Gauravmehla
by
8.4k points
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