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Math Help - Word problem regarding simulateous equations again.

  1. #1
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    Word problem regarding simulateous equations again.

    2 questions here.
    1 number is 9 times another number. The sum of the numbers is 260. What is the smaller number.
    If you are to use X &Y I am lost here. Or do you???


    Also.
    The perimeter of a rectangle lot is 200 meters. The length is 25 meters more than 2 times the width. Find the length of the lot.

    Lost on this one also,
    Fully explain so I can understand it, thanks.
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  2. #2
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    Quote Originally Posted by bradycat View Post
    2 questions here.
    1 number is 9 times another number. The sum of the numbers is 260. What is the smaller number.
    If you are to use X &Y I am lost here. Or do you???
    x is one number, the other is 9x as it is 9 times bigger.

    Now 9x + x = 260

    Can you finish it?
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  3. #3
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    Quote Originally Posted by bradycat View Post

    The perimeter of a rectangle lot is 200 meters. The length is 25 meters more than 2 times the width. Find the length of the lot.

    lets say width is x therefore length is x + 25

     P = 2(l+w)

    From what we know 200 = 2(x+(x+25))

    Expand and solve.
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  4. #4
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    Quote Originally Posted by pickslides View Post
    lets say width is x therefore length is x + 25
    If 25 more than 2 times the width, isn't that 2x + 25 ?
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  5. #5
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    Quote Originally Posted by Diagonal View Post
    If 25 more than 2 times the width, isn't that 2x + 25 ?
    Yep, must have read over that a little quick.
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