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10-12-2017
Mathematics

contestada

The area of a rectangular conference table is 51 square feet. if its length is 4 feet longer than its width, find the dimensions of the table. round each dimension to the nearest tenth

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tynollette tynollette

10-12-2017

L*W=51
L=W+4

Replace L with W+4: (W+4)*W=51
W²+4W-51=0
use the quadratic formula to find W:5.4 (sorry cannot type the formula here)
the length is 5.4+4=9.4

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