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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Question

Allyson Lang

Mathematics

30 March, 18:07

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.

Show your work.

+1

Answers (1)

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Will · Answer 1

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.

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.Show your work.

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.

Show your work.