The speed of sound is approximately 1.2 x 10^3 km/h. How long does it take for sound to travel 7.2 x 10^2 km? Write your answer in minutes.<

Question

The speed of sound is approximately 1.2 x 10^3 km/h. How long does it take for sound to travel 7.2 x 10^2 km? Write your answer in minutes.
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Gabriella 3 weeks 2021-11-08T11:42:28+00:00 1 Answer 0 views 0

Answers ( )

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    2021-11-08T11:44:22+00:00

    Answer:

      36 minutes

    Step-by-step explanation:

      time = distance / speed

      time = (7.2×10² km)/((1.2×10³ km)/(60 min)) = (7.2×60/1.2)×10²⁻³ min

      = 360×10⁻¹ min

      = 36 min

    It takes sound about 36 minutes to travel 720 km.

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