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  1. #1
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    Unhappy i need help urgent help

    hey im new here i dont know much i just started a quantatative methods classes and i have this assignment that i cant figure out


    the sum of two numbers divided by2 is 2o and the difference of the two numbers mulitpy by 3 is 18 find the two numbers


    i will be greatfull for any help
    you can check me out at SJallim@hotmail.com
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by sjallim View Post
    hey im new here i dont know much i just started a quantatative methods classes and i have this assignment that i cant figure out


    the sum of two numbers divided by2 is 2o and the difference of the two numbers mulitpy by 3 is 18 find the two numbers
    Let the numbers be a and b, then you are told that:

    (a+b)/2 = 20,

    and that:

    3(a-b) = 18

    Then the first can be rewritten as:

    a + b = 40,

    and the second as:

    a - b = 6.

    Then we have:

    (a+b) + (a-b) = 40 + 6,

    so:

    2a = 46,

    hence a=23, and so b=17.

    RonL
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