SOLUTION: The perimeter of a rectangle is 30 feet its length is 3 less than twice its width.What is the length and the width of the rectangle?
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Question 939257: The perimeter of a rectangle is 30 feet its length is 3 less than twice its width.What is the length and the width of the rectangle?
Answer by srinivas.g(540) (Show Source): You can put this solution on YOUR website!
perimeter = 30 feet
let width be x
length = 2x-3
formula : perimeter = 2(length+width)
30 = 2((2x-3)+x)
30 =2( 3x-3)
divide with 2 on both sides
15 =3x-3
add 3 on both sides
15+3 = 3x-3+3
18 = 3x
divide with 3 on both sides
6= x
result: width = 6 feet
length = 2*6-3 = 12-3 =9 feet
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