SOLUTION: The height of a box is 7 inches. The length is three inches more than the width. Find the width & length if the volume is 756 cubic inches.
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Question 293907: The height of a box is 7 inches. The length is three inches more than the width. Find the width & length if the volume is 756 cubic inches.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Starting with the formula for the volume of a box:
Substitute: V = 756, L = W+3, and h = 7.
Divide both sides by 7 and simplify..
Rearrange into the standard form for a quadratic equation.
Solve by factoring.
Apply the "zero product" rule.
or so...
or Discard the negative soltion as width cannot be negative,
inches, and...
inches.
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