shaeby13 shaeby13

20-04-2017
Mathematics

contestada

Please help! I need number one!

Please help I need number one class=

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aydensanchez aydensanchez

20-04-2017

just add 8+8 12+12 then get your answer and multiply that by each number in the answer box until you get 192

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20-04-2017

(8+2w)(12+2w)=192

96+16w+24w+4w^2=192

4w^2+40w+96=192

4w^2+40w-96=0

4(w^2+10w-24)=0

4(w^2-2w+12w-24)=0

4(w(w-2)+12(w-2))=0

4(w+12)(w-2)=0, since w>0

w=2

The width of the walkway is 2 feet.

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