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Solve Problems with Ratios and Unit Rates - Instruction - Level F
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1) A speed skater completes a 500-meter race in 40 seconds. A cheetah runs 260 meters in 10 seconds. How do their speeds compare?
(1)) Find the number of meters a speed skater and a cheetah travel in 1 second.
(1) A speed skater travels meters per second.
A cheetah travels ? meters per second.

Answer

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Answer

\(\text{Compare}: \frac{12.5}{26}= \frac{25}{52}= \frac{5}{13}\text{ or } 0.4808 \)

Steps

Step 1 ：\(\text{Speed Skater}:\frac{500}{40}=\frac{50}{4}=\frac{25}{2}=12.5\text{ m/s}\)

Step 2 ：\(\text{Cheetah}: \frac{260}{10}=26\text{ m/s}\)

Step 3 ：\(\text{Compare}: \frac{12.5}{26}= \frac{25}{52}= \frac{5}{13}\text{ or } 0.4808 \)