Asked by Selena

A runner takes 20 seconds to run 100 meters. How long to run 25 meters?

(Ex. 25/100 = 20/?)

15 years ago

Answered by Ms. Sue

You've misstated the ratio.

20/100 = x/25

Cross multiply and solve for x

100x = 500
x = 500/100
x = 5

15 years ago

Answered by Selena

oh thank you!!

15 years ago

Answered by Ms. Sue

You're welcome.

15 years ago

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