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Zinaida [17]
2 years ago
13

If a rectangle is 2 meters more than its width, and the area of it is 80 square meters, what is the length and width?

Mathematics
1 answer:
bezimeni [28]2 years ago
6 0
Ok I think it means that the length l of the rectangle is 2 m more than is width w...
The area is A=l*w=(w+2)*w=80
so: w^{2} +2w-80=0
Solving this equation (using the quadratic formula) you get 2 solutons. The only acceptable is the positive one, i.e. w=8 m, the length will then be l=w+2=8+2=10m.
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