Question

Magen has $1.10 in dimes nickels,and pennies. She has three times as many nickels pas pennies and the number of dimes is two less than the number of pennies.how many nickels and pennies do I have

Answer 1

We define the variables:
x = dimes
y = nickels
z = pennies
We write the system of equations:
0.1x + 0.05y + 0.01z = 1.10
y = 3z
x = z-2
Solving the system of equations we have:
x = 3
y = 15
z = 5
Answer:
The number of nickels and pennies is:
nickels = 15
pennies = 5