It takes Marty 1 1/4 hours to get ready for school. If 1/5 of that time is used to shower and 1/3 of that time is used to eat breakfast,how

Question

It takes Marty 1 1/4 hours to get ready for school. If 1/5 of that time is used to shower and 1/3 of that time is used to eat breakfast,how long does it take to shower and eat breakfast

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Adalyn 2 months 2021-10-14T00:40:46+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-14T00:41:46+00:00

    Answer:

      2/3 hour

    Step-by-step explanation:

    We can add the fractions, then multiply by the time, or we can multiply each by the time and add the results.

      (1/5 +1/3)(1 1/4) = (8/15)(5/4) = (4·2·5)/(3·5·4) = 2/3 . . . hours

    alternatively, …

      (1/5)(1 1/4) +(1/3)(1 1/4) = (1/5)(5/4) +(1/3)(5/4)

         = 1/4 +5/12 = 3/12 +5/12 = 8/12 = 2/3 . . . hours

    It takes Marty 2/3 hours (40 minutes) to shower and eat breakfast.

    0
    2021-10-14T00:42:28+00:00

    Answer: the total amount of time

    it takes to shower and eat breakfast is 2/3 hour.

    Step-by-step explanation:

    The total amount of time that it takes Marty to get ready for school is 1 1/4 hours. Converting to improper fraction, it becomes 5/4 hours.

    If 1/5 of that time is used to shower, it means that the it takes to shower is 1/5 × 5/4 = 1/4 hour.

    If 1/3 of that time is used to eat breakfast, it means that the time it took to eat breakfast is 1/4 × 5/4 = 5/12 hour.

    Therefore, the total amount of time

    it takes to shower and eat breakfast is

    1/4 + 5/12 = 8/12 = 2/3 hour

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45:7+7-4:2-5:5*4+35:2 =? ( )