Problema Solution
A newspaper carrier has $5.10 in change. He has four more quarters than dimes but four times as many nickels as quarters. How many coins of each type does he have?
How many dimes does he have?
How many quarters does he have?
How many nickels does he have?
Answer provided by our tutors
let 'd' represent the number of dimes, then 'd+4' represents the number of quarters and '4(d+4)' represents the number of nickels
a dime is 0.10
a quarter is 0.25
a nickel is 0.05
5.10=0.10d+0.25(d+4)+0.05(4(d+4))
click here to solve for the number of dimes
d=6
6+4=10
4(6+4)=40
The newspaper carrier had 6 dimes, 10 quarters and 40 nickels.