Asked by Amy

Solve the proportion:
You can find the distance from a thunderstorm by counting the number if seconds between the lighting flash and thunder. For example, if the time difference in 21 seconds, then the storm is 7 km away. How far away is the storm if the difference is 9 seconds?

Answers

Answered by Ms. Sue
Let's set up a proportion.

7/21 = x/9

Cross multiply and solve for x.

Answered by Amy
Thanks Ms. Sue

=3x
Answered by Ms. Sue
Yes, the storm is 3 km away.

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