Asked by Megan Brown

You have a piggy bank containing a total of 85 coins in dimes and quarters. If the piggy bank contain $14.50, how many dimes are there in the piggy bank?


Interest=principal multiply Rate multiply 1, or interest=principal multiply rate.

Answers

Answered by helper
d = number of dimes
.10d = value of dimes
85 - d = number of quarters
.25(85 - d) = value of quarters

0.10d + .25(85 - d) = 14.50
Solve for d, number of dimes
85 - d = number of quarters
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