SOLUTION: A train ticket has a perimeter of 34 centimeters. Its area is 70 square centimeters. What are the dimensions of the ticket?

Algebra ->  Rectangles -> SOLUTION: A train ticket has a perimeter of 34 centimeters. Its area is 70 square centimeters. What are the dimensions of the ticket?       Log On


   

Question 873738: A train ticket has a perimeter of 34 centimeters. Its area is 70 square centimeters. What are the dimensions of the ticket?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,



P =2L +2w = 34

    L + w = 17

     L = (17-w)

A = Lw = (17-w)w = 70

         w^2 - 17w + 70 = 0

         (w-10)(w -7) = 0

Dimensions: 7cm  by 10cm