SOLUTION: The width of a rectangle is 7 cm less than its length and its area is 250cm. Find its dimmensions*you may use any method. so what I tried doing is let X represent the length and

Question 691394: The width of a rectangle is 7 cm less than its length and its area is 250cm. Find its dimmensions*you may use any method.
so what I tried doing is let X represent the length and do 250 equals (x-7)*7 but I feel like this is super wrong. Please help. Thanks in advance
Answer by mouk(232) (Show Source): You can put this solution on YOUR website!
Nearly correct !
Let length=, then width=
Area = 250 so , Expanding gives:

Solving using the quadratic formula gives:

or (working to 2dp)
Obviously as x is the length then so solution is

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