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mixer [17]
3 years ago
7

7 meters/ 20 minutes= x cm/ 2 hours

Mathematics
1 answer:
NemiM [27]3 years ago
6 0

Answer:

x = 4200

Step-by-step explanation:

It is given 7 meters in 20 minutes.

We have to convert this ratio into "x" centimeters in 2 hours.

First, lets convert the given ratio to 2 hours (so time matches).

7 meters in 20 minutes

7 * 3 = 21 meters  in  20 * 3 = 60 minutes (1 hr)

So,

21 meters in 1 hr

That would mean:

21 * 2 = 42 meters in 1 * 2 = 2 hours

Now, we have:

42 meters in 2 hours

The time is same, now we just need to convert 42 meters to centimeters.

<em>we know 100 cm = 1 meter, so</em>

<em>42 m * 100 = 4200 centimeters</em>

<em />

Thus,

x = 4200 (cm)

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Answer:

200+300=500

Step-by-step explanation:

200+300=500 or 100+400=500

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364.8 ft^2.

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About 5% of the population has a particular genetic mutation. 300 people are randomly selected.
xz_007 [3.2K]

The standard deviation for the number of people with the genetic mutation is 3.77

<h3>How to determine the standard deviation?</h3>

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Read more about standard deviation at

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