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vichka [17]
3 years ago
14

6. Michael Johnson holds the Olympic record for the men's 400m race at 43 seconds. His

Mathematics
1 answer:
vlada-n [284]3 years ago
7 0

The difference between both unit rates rounded off to the nearest tenth is: 0.4 meters per second

Step-by-step explanation:

We have to calculate his unit rate for both type of races

So,

<u>Unit rate for 400m race:</u>

Distance = 400m

Time = 43 sec

Unit\ rate = U_1= \frac{Distance}{Time}\\=\frac{400}{43}\\=9.30\ meters\ per\ second

<u>Unit rate for 300m Race:</u>

Distance = 300m

Time = 31 sec

Unit\ Rate= U_2=\frac{300}{31}\\=9.68\ meters\ per\ second

The difference between both unit rates is:

U_2-U_1 = 9.68-9.30\\=0.38 => 0.4\ meters\ per\ sec

Hence,

The difference between both unit rates rounded off to the nearest tenth is: 0.4 meters per second

Keywords: Unit rate, Speed

Learn more about unit rate at:

  • brainly.com/question/10364988
  • brainly.com/question/10435816

#LearnwithBrainly

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Answer:

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2) A package of fruity gum, with 20 pieces of gum, sells for a total of $6.20.

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