SOLUTION: the width of a rectangle is one-fifth as much as the length. the perimeter is 120cm . Find the length and width
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Question 1030756: the width of a rectangle is one-fifth as much as the length. the perimeter is 120cm . Find the length and width
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
W = 1/5L
Perimeter:
2W+2L = 120 Substitute for W:
2(1/5L)+2L = 120
2/5L+2L = 120 multiply both sides times 5
2L+10L = 600
12L = 600
L = 50
And:
W =
`````````````````````````````````````
Check:
Perimeter:
2W+2L = 2(50)+2(10) = 120 Correct
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