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5 June, 06:07

She completed 60 math problems. That was only 15% of what she had to do. How many math problems did she have to do

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Answers (2)
  1. 5 June, 07:09
    0
    400

    Step-by-step explanation:

    use proportions

    (60/x) * (15/100)

    cross multiply

    6000=15x

    divide both sides by 15

    400=x
  2. 5 June, 08:04
    0
    First, turn the percentage into a decimal.

    15% = 0.15

    Second, divide.

    60 / 0.15 = 400

    Thus, she has to 400 questions total.

    Best of Luck!
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