If k1/2 = integer and k1/4 = integer, which is a possible value for k?
1 answer:
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Answer:
<u>900</u> black and white copies are printed.
Step-by-step explanation:
Given:
For every 9 black and white copies printed there are 2 color copies printed.
If there are 200 color copies printed.
Now, to find the number of black and white copies are printed.
Let the number of black and white copies printed be
As given, for every 9 black and white copies printed there are 2 color copies printed.
So, 9 is equivalent to 2.
If there are 200 color copies printed.
Thus, is equivalent to 200.
Now, to solve by using cross multiplication method:
<em>By cross multiplying we get:</em>
<em>Dividing both sides by 2 we get:</em>
Therefore, 900 black and white copies are printed.
The percentage that the number of airlines with an average airplane age of 14 is less than the number of airlines with an average airplane age of 11 is:
B. 20%.
<h3>What is a percentage?</h3>The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:
The percentage of airlines with an average age of 14 years is:
The percentage of airlines with an average age of 11 years is:
The difference is:
33.33% - 13.33% = 20%.
Hence option B is correct.
More can be learned about percentages at brainly.com/question/10491646
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