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Thread: Need help please

  1. #1

    Need help please

    Instructions: Write an equation using the variable n.
    Problem: One-third of a painting job takes 24 hours. How long will it take to complete the entire job?
    My thought: 24x3=72 so, n=72 ? I apologize I am new to algebra I'm sure the answer must be much more complicated?

  2. #2
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    Tough call. It is not perfectly clear what is wanted.

    You have already 24 * 3 = 72

    You can do this: n * 3 = 72, where n = 24

    You can do this: 24 * n = 72, where n = 3

    You can do this: 24 * 3 = n, where n = 72

    It's kind of bad form to use the same variable for three different purposes, but there it is.

  3. #3
    Elite Member mmm4444bot's Avatar
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    Quote Originally Posted by cjasmine View Post

    Instructions: Write an equation using the variable n.
    The instruction above tells you to use the symbol n to represent the unknown number of hours that it takes to complete the entire job.

    Hence, the expression that represents one-third of this unknown number of hours is:
    n/3

    Because we're told that one-third of n is 24 hours, the requested equation is:
    n/3 = 24

    Solve for n.

    Cheers ~ Mark

  4. #4
    Elite Member mmm4444bot's Avatar
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    Quote Originally Posted by cjasmine View Post
    I apologize I am new to algebra
    This is certainly nothing for which anybody needs to apologize.



    I'm sure the answer must be much more complicated
    Why are you sure about this?

  5. #5
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    [2 + 3 = 5]
    Teacher replaces the 3 with letter x:
    2 + x = 5
    Then gives that equation to you and asks you to solve for x.

    Look at Algebra that way at start: a sort of hunt/puzzle:
    do not get scared off because it's called Algebra.
    Believe it or not, Algebra is actually FUN
    I'm just an imagination of your figment !

  6. #6
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    Quote Originally Posted by mmm4444bot View Post
    The instruction above tells you to use the symbol n to represent the unknown number of hours that it takes to complete the entire job.

    Hence, the expression that represents one-third of this unknown number of hours is:
    n/3

    Because we're told that one-third of n is 24 hours, the requested equation is:
    n/3 = 24

    Solve for n.

    Cheers ~ Mark
    Actually, there doesn't appear to be anywhere in that problem that says you need to solve the equation- just write the equation.

  7. #7
    Elite Member mmm4444bot's Avatar
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    I don't think so, Junior Member HallsofIvy.

    The OP states: "How long will it take to complete the entire job?"

    We answer this question by solving the requested equation for n.

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