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lyudmila [28]
3 years ago
14

Usain Bolt ran a 5-k (5 kilometer) race in 7.5 minutes. You observe a rabbit run across your yard (a distance of 30 meters) in 2

.4 seconds.
Who is faster, Usain Bolt or the rabbit? PLEASEE HELPP PLEASE YHIS IS DUE IN 10 MIN RN I WILL GOVE BRAINLIEST WITH EXPLANATION THANK YOU!
Mathematics
1 answer:
sdas [7]3 years ago
8 0

Answer:

Usain Bolt

Step-by-step explanation:

  1. 1 kilometer = 1,000
  2. So, 5 kilometers = 5,000 meters

Find out their time per 1 meter:

Usain Bolt:

  1. Set up a proportion: \frac{5000}{7.5} = \frac{1}{x}  
  2. Cross multiply, then divide: 1 × 7.5 = 7.5, 7.5 ÷ 5000 = 0.0015

The rabbit:

  1. Set up a proportion: \frac{30}{2.4} = \frac{1}{x}  
  2. Cross multiply, then divide: 1 × 2.4 = 2.4, 2.4 ÷ 30 = 0.08

Compare the times:

  1. Usain Bolt: 0.0015 minutes in 1 meter
  2. Rabbit: 0.08 seconds in 1 meter
  3. Because 0.0015 minutes is faster than 0.08 seconds, Usain Bolt is the answer.

I hope this helps!

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