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Eva8 [605]
1 year ago
7

In 2017 there were enough renewable energy sources to supply a total of 9309 megawatts of electricity in a country. This graph s

hows the proportions that the different renewable energy sources could supply. Approximately how many megawatts of electricity could be supplied by Hydropower in 2017?
700

1700

2300

7000

Mathematics
1 answer:
STatiana [176]1 year ago
5 0

Approximately 1700 megawatts of electricity could be supplied by Hydropower in 2017. Option B is correct.

Given that,
In 2017 there were enough renewable energy sources to supply a total of 9309 megawatts of electricity in a country. The graph shows the proportions that the different renewable energy sources could supply.

<h3>What are percentages?</h3>

the percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here, from the graph contribution of the hydropower is 18.2%.
So the electricity produced through hydropower is,
= 9309 * 18.2%
= 9309 * 18.2/100
= 1694.23
≈ 1700 megawatts

Thus, approximately 1700 megawatts of electricity could be supplied by Hydropower in 2017.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ1

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A study of parents of kindergarteners included 349 parents who were chosen at
miskamm [114]

Answer:

47% is the statistic and 31% is the parameter.

Step-by-step explanation:

A parameter is a quantity of a variable representing certain characteristic of a population.

A statistic is a quantity of a variable representing certain characteristic of a sample.

The sample of parents of kindergartners selected is, <em>n</em> = 345.

The School records show that only 31% of parents of kindergartners sent their children to pre-kindergarten.

That is the population proportion is, <em>p</em> = 0.31.

This is the parameter value.

Of the 349 parents, 47% said they sent their children to pre-kindergarten.

That is the sample proportion is, \hat p = 0.47.

This is the statistic value.

Thus, the correct option is:

47% is the statistic and 31% is the parameter.

7 0
3 years ago
Which of the following statements demonstrates the associative property of multiplication?
professor190 [17]
Associative property of multiplication means that it doesn't matter where the parentheses are placed because it will still be the same answer.  

So your answer would be 1, 4 x (3 x 6) = (4 x 3) x 6

I hope this helps! 
6 0
3 years ago
I have no idea what 6/x = 8/19 is help bruv
bazaltina [42]

Answer:  X=17

Step-by-step explanation: (sorry if im wrong) so basicly X would be 17 because 6+2=8 so X has to +2 to get to 19 making X=17

8 0
3 years ago
A class is made up of 8 boys and 6 girls. Half of the girls wear glasses. A student is selected at random from the class. What i
sammy [17]
3/14 3 out of 14 or 0.214% of a chance
8 0
3 years ago
Georgina ran 3/8 mile in 3 minutes. How many miles does she run per minute?
Pachacha [2.7K]
In the given question we can see that the information,Georgina ran a distance of 3/8 mile in 3 minutes is already provided.
So
In 3 minutes Georgina can run a distance of = 3/8 miles
Then In 1 minute Georgina can run a distance of = 3/(8 * 3) miles
                                                                               = 3/24 miles
                                                                               = 1/8 miles.
So it can be said now that in 1 minute the distance that Georgina can cover is 1/8 miles. If required it can be converted to decimal value as well.

6 0
3 years ago
Read 2 more answers
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