Raymond B. answered • 03/05/20
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Math, microeconomics or criminal justice
L=3W-9
2L+2W=38
2(3W-9)+2W = 38
6W-18 + 2W = 38
8W = 56
W =56/8 = 7 cm
L=3W-9=3(7)-9=21-9=12 cm
W=7 cm L=12cm
Kayla G.
asked • 09/16/19Find the dimensions of a rectangle with a perimeter of 38 cm if the length is 9 cm less than three times the width.
Find the dimensions of a rectangle with a perimeter of 38 cm if the length is 9 cm less than three times the width.
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