Answer:
84 nickels, 91 dimes
Step-by-step explanation:
d = # of dimes
n = # of nickels
0.1d + 0.05n = 13.3
d + n = 175
Now solving for n:
Lets multiply the first equation by 100 for ease
10d + 5n = 1330
n = 266 - 2d
d = 175 - n
Substituting it in:
n = 266 - 2(175 - n)
n = 84
