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03-03-2018
Mathematics

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The shaded area represents a cement walkway around a pool. State the algebraic expression that represents the difference between the outside perimeter of the walkway and the perimeter of the pool.

The shaded area represents a cement walkway around a pool State the algebraic expression that represents the difference between the outside perimeter of the wal class=

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gp232039 gp232039

03-03-2018

Large perimeter : 2(2x+12)+2(2x-1+7+7)=8x+50
Smaller perimeter : 2(2x-1)+2(12)=4x+22

Large perimeter - smaller perimeter = 4x+28

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