Problema Solution
You hVe a full dish of nickels and quarters
If there re 16 coins altogether worth$2.20 how many of each coin do you have?
Answer provided by our tutors
1 quarter = 25 cents
1 nickle = 5 cents
let
q = the number of quarters, q is integer, q >= 0
n = the number of nickles, n is integer, n >= 0
there re 16 coins altogether worth $2.20 = 220 cents:
q + n = 16
25q + 5n = 220
by solving the above system of equations we find:
q = 7 quarters
n = 9 nickles
click here to see the step by step solution of the system of equations:
there are 7 quarters and 9 nickles in the dish.