Question 1028121
d = number of dimes
n = number of nickels


d + n = 11
10d + 5n = 85


Multiply the first equation by 10.


10d + 10n = 110
10d + 5n = 85


Subtract to get 5n = 25, or n = 5.


Justin has 5 nickels and 6 dimes.