4 years ago

0.25q+0.10d=4.95 D=3q

1 answer:

5 0

0.25q + 0.1d = 4.95
d = 3q

0.25q + 0.1(3q) = 4.95
 0.25q + 0.3q = 4.95
 0.55q = 4.95
 0.55 0.55
 q = 9
0.25(9) + 0.1d = 4.95
 2.25 + 0.1d = 4.95
- 2.25 - 2.25
 0.1d = 2.7
 0.1 0.1
 d = 27

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