Question

a jar contains n nickels and d dimes. there are 17 coins in the jar, and the total value of the coins is $1.10. How many nickels and how many dimes are in the jar?

Answer 1

Explanation:

n + d = 17

5n + 10d = 110

Solve the system of equations using substitution or elimination. Using substitution:

5n + 10(17 − n) = 110

5n + 170 − 10n = 110

60 = 5n

n = 12

d = 5

There are 12 nickels and 5 dimes.