# SOLUTION: Two bike trails have a total length of 20 miles. If the product of the length of the trails is 91, find the length of each trail.

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 Question 168250: Two bike trails have a total length of 20 miles. If the product of the length of the trails is 91, find the length of each trail.Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!X+Y=20 OR X=20-Y XY=91 (20-Y)Y=91 20Y-Y^2-91=0 Y^2-20Y+91=0 (Y-13)(Y-7)=0 Y-13=0 Y=13 ANS. Y-7=0 Y=7 ANS. PROOF: 7*13=91 91=91