shaeby13
shaeby13
20-04-2017
Mathematics
contestada
Please help! I need number one!
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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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irspow
irspow
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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