SOLUTION: a photograph measures 21cm by 15 cm. A strip of constant width is to be cut from each side of the photo. So area is reduced to 216cm squared. find the width of the cut.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: a photograph measures 21cm by 15 cm. A strip of constant width is to be cut from each side of the photo. So area is reduced to 216cm squared. find the width of the cut.       Log On


   

Question 1033901: a photograph measures 21cm by 15 cm. A strip of constant width is to be cut from each side of the photo. So area is reduced to 216cm squared. find the width of the cut.
Answer by josgarithmetic(39620) About Me  (Show Source):
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