Problema Solution
A piggy bank contains nickels,dimes and quarters.There are four times ad many dimes as quarters and seven more nickels than dimes.The total value of all the coins is $5.45.How many dimes are in the bank?
Answer provided by our tutors
Let 'n', 'd', and 'q' stand for the number of nickels, dimes, and quarters. We can write:
d=4q
n=d+7
.05n+.10d+.25q=5.45
Using Algebrator to solve for 'd', 'n', and 'q', we get:
d=24
n=31
q=6