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Math Help - temperature

  1. #1
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    temperature

    A metal stays solid at Fahrenheit temp below 1868.5
    Determine (in terms of an inequality) those Celsisu temp, for which the metal stays solid. Use the formula

    F=9/5c+32

    This is what I've got so far:
    1868.5 = (9/5)c + 32
    multiply by 5
    9342.5 = 9c + 160

    1020.28

    but then I get lost? Is this even right? Help please....
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  2. #2
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    Quote Originally Posted by bball20 View Post
    A metal stays solid at Fahrenheit temp below 1868.5
    Determine (in terms of an inequality) those Celsisu temp, for which the metal stays solid. Use the formula

    F=9/5c+32

    This is what I've got so far:
    1868.5 = (9/5)c + 32
    multiply by 5
    9342.5 = 9c + 160

    1020.28

    but then I get lost? Is this even right? Help please....
    The calculation is correct. For reference, you can check your answers to questions of this type using Google . . . try doing a Google search for "1868.5 F = ? C" (without the quotes) and see what happens.

    How would you state this as an inequality? It looks like T < 1868.5 F for the original figures.
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  3. #3
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    Sep 2009
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    Thank you. I thought I was way off base!
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