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4 years ago

13

Amy makes a rectangular poster with an area of 21+28m square inches. The width of the poster is 7 inches as shown in the followi

ng diagram. What is the length of the poster?

1 answer:

Lesechka [4]4 years ago

8 0

You could use simple factoring to solve this. You would factor out a 7 and then have

7(3+4m) = A

l x w = A

w= 3 +4m

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