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oksano4ka [1.4K]
3 years ago
7

Kevin runs 7 miles in 50 minutes. At the same rate, how many miles would he run in 75 minutes?

Mathematics
1 answer:
lubasha [3.4K]3 years ago
4 0

Answer:

10.5 miles

Step-by-step explanation:

He runs 7/50 of a mile in 1 minute

In 75 min, he runs (7/50) • 75 = 10.5

He runs 10.5 mi in 75 min

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The current population of the Earth is estimated to be about 7,440,000,000 people. Express this number using scientific notation
SCORPION-xisa [38]

Answer:

7.44 × 10⁹

Step-by-step explanation:

You would take a decimal point from the last zero to in-between 7 and 4 and see how many places you moved it then write the scientific formula.

9 spaces so it would be 7.44 × 10⁹

8 0
3 years ago
Q’R’S’ is the image of QRS under a dilation through point C. What scale factor was used in the dilation?
ad-work [718]

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7 0
3 years ago
Read 2 more answers
6. Michael Johnson holds the Olympic record for the men's 400m race at 43 seconds. His
vlada-n [284]

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

7 0
3 years ago
2x+5=3x=4x-5
elena55 [62]
You would need to isolate the "X" variable because it is common in all 3 equations.
8 0
3 years ago
Question 1 options:<br><br> 13.5<br><br><br> 12<br><br><br> 13<br><br><br> 11
ki77a [65]

Answer: 13

nothing in between 13

Down below

4 0
2 years ago
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