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850' of #2 wire is sent to your job. On Monday, you cut 3 pieces, each 175' long. On Tuesday, you cut 3 pieces, each 88' long, and 3 pieces, each 20' long. How much wire is left on the reel?

Respuesta :

The remaining wire (W) is just the original wire (850') minus the cut wire on Monday, Tuesday...

[tex]W=850^{\prime}-3\cdot175^{\prime}-3\cdot88^{\prime}-3\cdot20^{\prime}=1^{\prime}[/tex]

There is merely 1' of wire in the reel.

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