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math, 5th grade

posted by on .

I am really stuck on how to figure this answer out, could you please help me?

A stoplight flashes red for 50seconds, yellow for five seconds, and green for 65 seconds. In a 24 hour period, how long is the light red?

  • math, 5th grade - ,

    It is red 50/(50 + 5 + 65) = 5/12 of the time

    5/12 of 24 hours is 10 hours.

  • math, 5th grade - ,

    Thank you

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