Jeff has $3.15 made up of nickels and dimes. If he has five times as many nickels as dimes, how many dimes does he have? show let statements and equations.

The equation will be based off of the dimes.

d = number of dimes

.1d + 5d (.05) = 3.15

.35d=3.15

d=9

There are 9 dimes, so there must be 45 nickels since there are 5 times as many.

Check your answer:

9 (.1) + 45 (.05) =.9+2.25=3.15

There are 9 dimes and 45 nickels.