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7 August, 14:58

Rosita had 17 subtraction problems and 28 multiplication problems. If she ca finish five problems in 20 minutes, how long will it take her to finish all the problems?

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  1. 7 August, 15:08
    0
    Step-by-step explanation:

    total problems = 17+28=45

    If she ca finish five problems in 20 minutes,

    so ...

    for 45 problems

    she take 45/5*20=180 minute = 3hour
  2. 7 August, 15:15
    0
    It would be 3 hours

    Step-by-step explanation: you add 17+28 and you get 45, then you divide 45by 5 which gets you 9 and then you add 20 together 9 times
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