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OpenStudy (anonymous):
Marty has a piggy bank that contains $2.25. The piggy bank contains only quarters and dimes. There are twice as many dimes as quarters in the bank.How many dimes are in the piggy bank?
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OpenStudy (anonymous):
10d + 25q = 225 d = 2q 10(2q) +25q = 225 20q + 25q = 225 45q = 225 q = 5
OpenStudy (anonymous):
Thanks
OpenStudy (anonymous):
i need to know how many dimes there are
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