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Math Help - Find Number of Footsteps

  1. #1
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    Find Number of Footsteps

    If the first dinosaur is 6 of Alisha's footsteps or 9 of Carlos' footsteps, and another dinosaur is x of Alisha's footsteps, how many of Carlos' footsteps will it be?
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  2. #2
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    Quote Originally Posted by fdrhs1984 View Post
    If the first dinosaur is 6 of Alisha's footsteps or 9 of Carlos' footsteps, and another dinosaur is x of Alisha's footsteps, how many of Carlos' footsteps will it be?
    Think ratio.
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  3. #3
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    I don't follow. Can you set up the ratio?
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  4. #4
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    Let A be Alisha and C be Carlos.

    1st dino:6A or 9C

    6A=9C
    A=(9/6)(C)
    AX=(9/6)(C)(X)
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  5. #5
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    Quote Originally Posted by helloying View Post
    Let A be Alisha and C be Carlos.

    1st dino:6A or 9C

    6A=9C
    A=(9/6)(C)
    AX=(9/6)(C)(X)
    This is actually not right.

    The ratio of Alisha's footsteps to Carlos's is 6:9.

    A/C = 6/9
    6C = 9A

    We want to solve for C, not A

    C = (9/6)A = (3/2)A

    So when A = x, then C = (3/2)x
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  6. #6
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    Thanks for your effort.
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  7. #7
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    Yes, this is the correct answer.
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