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LenKa [72]
3 years ago
11

A car was driving for 4 hours and covered 225 miles. A high-speed train is ten times as fast as this car. Find the train's speed

.
Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
5 0

Answer:

562.5 mph

Step-by-step explanation:

First, let's find how fast the car is going in miles per hour. We do this by dividing the miles by how many hours it took:

225/4 = 56.25

The car was going 56.25 mph

A high-speed train is ten times faster than this car so you multiply 56.25 by 10

(10)(56.25) = 562.5

The train's speed is 562.5 mph

<em>Hope this helps!</em>

<em>- Kay :)</em>

OLga [1]3 years ago
4 0

Answer:

The train covers 2250 miles in 4 hours compared to 225 miles covered in 4 hours by the car

Step-by-step explanation:

56.25 miles per hour - Car

562.50 miles per hour - Train

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7 0
3 years ago
4. Dayon and Naqueal go on a run everyday after school. For every 2 blocks Naqueal
irakobra [83]

Answer:

A. 2:1

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8 0
4 years ago
Seven times a number is greater than 28.
sladkih [1.3K]

Answer:

Inequality would be

7x>28

The answer to the inequality would be

X>4

Step-by-step explanation:

Divide 7 on Both sides

x>4

check

7(5)>28?

35>28☑️

3 0
3 years ago
Can some help me im gonna fail the class if i dont get this question correct :(
kramer

Answer:

1

Step-by-step explanation:

2

3 0
3 years ago
Pls help!!<br><br><br> need ur help math geniuses help with my last question!<br><br><br><br> ty
Shtirlitz [24]

The expected value of the discrete distribution is of 20.97, hence option C gives the correct answer.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability.</u>

Hence, according to the table, the expected value is given by:

E(X) = 12 x 0.08 + 18 x 0.15 + 20 x 0.31 + 22 x 0.08 + 24 x 0.15 + 25 x 0.23 = 20.97.

More can be learned about the expected value of a discrete distribution at brainly.com/question/26660401

#SPJ1

7 0
2 years ago
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