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Math Help - Algebra Word Problem - Can I get help solving this one?

  1. #1
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    Question Algebra Word Problem - Can I get help solving this one?

    I'm going in circles trying to solve this problem....can anyone please help with details on how to solve it? Thank you much.

    John did three repair jobs last month. The second job paid $10 more than three times the first. The third job paid half as much as the second job. Altogether, he earned $675. How much was John paid for the second job?
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  2. #2
    Super Member Quacky's Avatar
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    Let the first job be 'x', the second 'y' and the third 'z'.

    Then:

    3x+10 = y

    0.5y=z

    x+y+z=675

    Three equations, three unknowns.

    Do you follow so far? If so, then just solve for x, y and z using either substitution or elimination.
    Last edited by Quacky; April 21st 2011 at 06:52 AM.
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  3. #3
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    I would call the first job x.

    Then you have x + (3x+10) + ((3x+10)/2) = 675 solve for x.
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