Question 1107799

n + d + q = 47
25q - 10d = 370
n = q + 12
25q - 370 = 10d
5q - 74 = 2d
d = 5q/2 - 37
n + d + q = 47
(q + 12) + ((5q/2) - 37) + q = 17
2q + (5q/2) + 12 - 37 = 47
2q + (5q/2) = 47 - 12 + 37
2q + 5q/2 = 72
4q + 5q = 144
9q = 144
q = 16
n = 28
d = 3