Asked by jennifer
the width of a rectangle is one half its length. the perimeter of the rectangle is 54cm. what are the width and length of the rectangle.
Answers
Answered by
jen :)
let x be the length
let y be the width
y=1/2x
2x+2y=54
substitute-> 2x+2(1/2x)=54
2x+x=54
3x=54
x=18
since the width is half the length
18/2= 9
y=9
let y be the width
y=1/2x
2x+2y=54
substitute-> 2x+2(1/2x)=54
2x+x=54
3x=54
x=18
since the width is half the length
18/2= 9
y=9
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