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March 28, 2017

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1 1/8 in. = how many miles?

  • Math - ,

    What is the map scale?

  • Math - ,

    1/8 in. = 10 mi.
    1 1/8 in. = ? mi.
    And you give the formula Ms. Sue

  • Math - ,

    One way to solve this is by using a proportion. Cross multiply and solve for x.

    (1/8) / 10 = (1 1/8) / x

    1/8x = 11 1/4

    x = (11 1/4) / (1/8)

    x = 45/4 * 8 = 90

  • Math - ,

    So Ms. My answer would be 90? But I'm still having a hard time understanding how you got your answer.

  • Math - ,

    Yes, the answer is 90.

    Another way to approach this is to note that 1 1/8 is 9 times 1/8. So 9 * 10 = 90.

  • Math - ,

    Ms. Sue how did you get 9?

  • Math - ,

    1 1/8 = 9/8

  • Math - ,

    8/8 + 1/8 = 9/8

  • Math - ,

    Thank you Ms. Sue we love you :)))!!

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