Question 372776: you have 6.80 in a piggy bank...in the bank their are 3 times as many quarters as dimes...how many quarters and dimes are in the bank?...i think it's 24q and 8d...but i need help in setting up the equation..tks
Answer by solver91311(24713)   (Show Source):
You can put this solution on YOUR website!
You didn't bother to state that the bank contained ONLY dimes and quarters, however since without such presumption you can't solve the problem, we proceed on that basis.
Let  represent the number of dimes. Then  must represent the number of quarters. The value of the dimes, in cents, is  , the value of the quarters, in cents, is  , and the entire value of the bank contents, in cents, is 680. Hence:
Solve for to get the number dimes. Multiply by 3 to get the number of quarters.
John
My calculator said it, I believe it, that settles it
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