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OpenStudy (anonymous):
1. Vicki has $2.80 in quarters and dimes. The number of dimes is 7 less than the number of quarters. Find the number she has of each kind. 2. A purse containing $3.20 in quarters and dimes has, in all, 20 coins. Find the number of each kind of coin.
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OpenStudy (anonymous):
can you show the substitution work?
zepdrix (zepdrix):
|dw:1348685007820:dw| try to solve for Q from here :)
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