# 60d+65n=280050d+45n=2150

3 answers

## Answers

From the second equation we can find that d=43-(9/10)*n

we can put this equation into the first one,

So we have equation 60(43-(9/10)*n)+65n=2800

Solving that we get n=20

60d+65*20=2800

d=25

So the answer is d=25 and n=20

isi

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54.864 meters

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