you have a piggy bank containing a total of 86 coins in dimes and quarters. if the piggy bank contains $13.70, how many dimes are there in a piggy bank

Question

you have a piggy bank containing a total of 86 coins in dimes and quarters. if the piggy bank contains $13.70, how many dimes are there in a piggy bank

Answer 1

Hi Sydney,

Let's look at the problem...

Total dimes + quarters = 86 coins, or D + Q = 86

Dimes are worth 10 cents each, quarters are 25 cents each.

$.10 D + $.25 Q = $13.70

You can now sub the value of D or Q into the second equation and solve!