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math

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Lois got 27 problems right on a math test. If this is 90% of the test, how many problems were on the test?

  • math - ,

    0.9x = 27

    x = 27/0.9

    x = ?

  • math - ,

    Thanks :D i knew it was 30, just wasn't sure how to get to the answer :D

  • math - ,

    You're welcome.

    :-)

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