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Thread: Algebraic Expression

  1. #1
    Super Member harpazo's Avatar
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    Algebraic Expression

    Heather bought enough shells to make x necklaces. Each necklace holds 16 shells. Heather has made 10 necklaces.
    Is 16x + 10 a reasonable way to represent the number of shells that Heather has left to make necklaces with? Explain your answer.

    My Effort

    We know that Heather has enough shells to make x necklaces. So, the variable x represents each necklace.

    We are also told that each necklace holds 16 shells. This means that she bought 16 times x or 16x shells.

    We also know that she already made 10 necklaces, which means she used 160 shells or (10 • 16). In conclusion, the number of shells she has left can be represented by the binomial 16x - 160. Is this right?
    Last edited by harpazo; Jan 7th 2019 at 07:59 PM.
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  2. #2
    MHF Contributor MarkFL's Avatar
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    Re: Algebraic Expression

    Yes, looks good to me. Alternately, you could represent the number of shells $\displaystyle S$ left, where $\displaystyle N$ is the number of necklaces made:

    $\displaystyle S=16(x-N)$
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  3. #3
    Super Member harpazo's Avatar
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    Re: Algebraic Expression

    Quote Originally Posted by MarkFL View Post
    Yes, looks good to me. Alternately, you could represent the number of shells $\displaystyle S$ left, where $\displaystyle N$ is the number of necklaces made:

    $\displaystyle S=16(x-N)$
    Thank you.
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