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OpenStudy (anonymous):
Suppose you have just enough money, in coins, to pay for a gallon of milk priced at $2.40. You have 12 coins, all quarters and dimes. Let q equal the number of quarters and d equal the number of dimes. Which system models the given information?
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OpenStudy (anonymous):
q*0.25 + d*0.10 = 2.40 q+d = 12
OpenStudy (anonymous):
how did you get that answer?
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