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  1. #1
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    Word Problem Help

    If the length of a side of a square is increased by 3 centimeter, the perimeter of the new square is 40 centimeters more than twice the length of the side of the original square. Find the length of the side of the original square.


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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by JonathanEyoon View Post
    If the length of a side of a square is increased by 3 centimeter, the perimeter of the new square is 40 centimeters more than twice the length of the side of the original square. Find the length of the side of the original square.


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    Let x be the side length of the original square.
    Let P be the perimeter of the new square

    Then P = 4(x + 3)

    Now we are told that P = 2x + 40

    \Rightarrow 4(x + 3) = 2x + 40

    Now we just solve for x. I think you can take it from here
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  3. #3
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    Quote Originally Posted by Jhevon View Post
    Let x be the side length of the original square.
    Let P be the perimeter of the new square

    Then P = 4(x + 3)

    Now we are told that P = 2x + 40

    \Rightarrow 4(x + 3) = 2x + 40

    Now we just solve for x. I think you can take it from here
    Thanks so much for the help. Question where did you get the 4 from?

    Nevermind. My problem in doing this was I used 2L+2W=P instead of 4L=P. Thanks for the help =)
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