Posted by topaz on .
The perimeter of a rectangle is 94 ft, and the area of the rectangle is 90ft ^2. What are the dimensions of the rectangle?

algebra 
Reiny,
2p+2l = 94
p+l = 47
l = 47p
pl = 90
p(47p) = 90
p^2 + 47p  90 = 0
p^2  47p + 90 = 0
(p45)(p2) = 0
p = 45 or p = 2
if p=45 , l = 4745 = 2
if p = 2, l = 472 = 45
the rectangle is 2 ft by 45 ft