Alexis L.

asked • 09/15/18

Suppose an airport runway is 4x feet wide. The airport was supposed to have a 4000​-foot-long runway.​ However, some of the land was​ wetland, so a runway could

Therefore, the length of the runway was decreased by 3y feet. Use the distributive property to find an expression for the area of the final runway.

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Lauren H. answered • 09/15/18

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w = 4x
l = (4000 - 3y)
 
A = lw
A = 4x(4000 - 3y)
A = 16000x - 12y
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David W.

Well, ...     A = 16000x - 12xy

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09/15/18

Alexis L.

"An expression for the the area of the final runway is ___ft squared?" How do I go about answering this? Could you break it down for me?
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09/15/18

David W.

Well, ...     A = 16000x - 12xy
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09/15/18

David W.

"An expression for the the area of the final runway is   16000x - 12xy  ft squared" 
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09/15/18

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