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26 September, 07:47

A railroad crew can lay 6 miles of track each day. They need ti lay 174 miles of track. The length, L (in miles), that is left to lay after d days is given by the function.

L (d) = 174-6d

(A) How many miles if track does the crew have left to lay after 17 days?

___ miles

(B) How many days it will take the crew to lay all the track?

___ days

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Answers (1)
  1. 26 September, 07:59
    0
    X + y = 13

    - x + y = 3
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