# SOLUTION: The volume of a box must be 315 cubic meter. The length of the box is to be 7 meters and the height is to be 4 meters more than the width. Find the width of the box

Algebra ->  Algebra  -> Volume -> SOLUTION: The volume of a box must be 315 cubic meter. The length of the box is to be 7 meters and the height is to be 4 meters more than the width. Find the width of the box       Log On

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 Click here to see ALL problems on Volume Question 234322: The volume of a box must be 315 cubic meter. The length of the box is to be 7 meters and the height is to be 4 meters more than the width. Find the width of the box Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!volume=l*w*h 315=7*w*(w+4) 315=7w(w+4) 315=7w^2+28w 7w^2+28w-315=0 7(w^2+4w-45)=0 7(w+9)(w-5)=0 w-5=0 w=5 ans. for the width. Proof: 315=7*5(5+4) 315=35*9 315=315