Problema Solution
Kevin and Randy have a jar containing 68 coins, all of which are either quarters or nickles. The total of the coins in the jar is $8.20. How many of each type of coin do they have?
Answer provided by our tutors
1 nickle = 5 cents
1 quarter = 25 cents
let
n = the number of nickles, n>0
q = the number of quarter, q>0
Kevin and Randy have a jar containing 68 coins, all of which are either quarters or nickles:
n + q = 68
The total of the coins in the jar is $8.20 = 820 cents:
5n + 25q = 820
by solving the system of equations:
n + q = 68
5n + 25q = 820
we find:
n = 44 nickles
q = 24 quarters
click here to see the step by step solution of the system of equations:
Kevin and Randy have 44 nickles and 24 quarters.