Arectangular piece of cardboard is 15 inches longer than it is wide. a 5-inch square is cut from each corner, and the remaining piece is folded to form a box.  if the volume of the box is 1,250 cubic inches, what is the length of the box? a.25 inches b.30  inches c.35  inches d.40  inches

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If the volume of the box is 1,250 cubic inches, then

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The length of the box is x+5=20+5=25 in. (the negative x is extra, because the length couldn't be negative).

the length of the box is 25 inches.

answer is because 4×10=40

and 98×4= is 392

40,392

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x