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kenny6666 [7]
3 years ago
8

Can someone help with number 10 ASAP

Mathematics
1 answer:
Allisa [31]3 years ago
6 0

Length is 3 times the width

So L = 3W

If L is decreased by 4m and with increased by 1m and perimeter is 66 then

2(3W - 4) + 2(W + 1) = 66

6W - 8 + 2W + 2 = 66

8W - 6 = 66

8W = 72

W = 9

L = 3 x 9 = 27

Width of rectangle = 9 m and length = 27 m


New rectangle:

Width is increase by 1 m = 9 + 1 = 10 m

Length is decreased by 4 m = 27 - 4 = 23 m

Answer

Dimensions of new rectangle are 10 m and 23 m


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