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babymother [125]
3 years ago
13

A notebook has a perimeter of 36 inches. It’s area is 80 square inches. What are the dimensions of the notebook

Mathematics
1 answer:
earnstyle [38]3 years ago
7 0
Let's call he width of the notebook w and the length l

w*l=80

2(w+l)=36
w+l=18
w=18-l

(18-l)*l=80
-l^2+18*l-80=0
l=8 or 10

Therefore, the notebook is 8 by 10 inches


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