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Math Help - Quick equation to check

  1. #1
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    Quick equation to check

    New carpeting can be purchased and installed for $22.00 per square yard, plus a $50 delivery fee. (a) Write an equation that gives the cost, c, to carpet s square yards.

    Wouldn't the equation for this be s = 22c + 50? I also need to find the inverse of this in order to calculate how many square yards are given for a certain price and the inverse of this equation: c - 50/22 = s is the only thing that makes sense.

    Thanks
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  2. #2
    A riddle wrapped in an enigma
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    Quote Originally Posted by bobbyboy1111 View Post
    New carpeting can be purchased and installed for $22.00 per square yard, plus a $50 delivery fee. (a) Write an equation that gives the cost, c, to carpet s square yards.

    Wouldn't the equation for this be s = 22c + 50? I also need to find the inverse of this in order to calculate how many square yards are given for a certain price and the inverse of this equation: c - 50/22 = s is the only thing that makes sense.

    Thanks
    Hi bobbyboy1111,

    Your initial equation should be c = 22s + 50.
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  3. #3
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    Quote Originally Posted by masters View Post
    Hi bobbyboy1111,

    Your initial equation should be c = 22s + 50.

    This is what I calculated too, but the inverse turns out weird.
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    A riddle wrapped in an enigma
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    Quote Originally Posted by bobbyboy1111 View Post
    This is what I calculated too, but the inverse turns out weird.
    s=\frac{c-50}{22}
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