Question 551326
d = dimes
n = nickels
q = quarters
.
d + n + q = 15 coins
.
q = 7
.
d + n = 15 - 7 = 8
.
n = 3*d
.
d + 3*d = 8
4*d = 8
d = 2
.
n = 3*2 = 6
.
done