Problema Solution
Mandy has 133 coins in her change jar, which are all nickels and quarters. The total value of the coins is $17.65. How many of each coin does Mandy have?
Answer provided by our tutors
let 'x' represent the number of nickels Mandy has, then '133-x' represents the number of quarters
17.65 = 0.05x + 0.25(133-x)
solving for 'x' we have x=78
133-78 = 55
Mandy has 78 nickels and 55 quarters