SOLUTION: A designer wants to make a box with depth of 6 cm. The length must be 4cm more than the width. It must have a volume of 780 cm. Find the best width to 1 d.p
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Question 831451: A designer wants to make a box with depth of 6 cm. The length must be 4cm more than the width. It must have a volume of 780 cm. Find the best width to 1 d.p
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
780/6=130 sq cm
l=w+4
(w+4)*w=w^2+4w
w^2+4w-130=0
w = 9.5758 about 9.6
l= 13.5758 about 13.6
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