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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Answer:
4851 ways
Step-by-step explanation:
The fish have 3 choices. They can make it above, below, or though the pipe. Keep in mind there are 100 fish total:
group 1 + group 2 + group 3 = 100
If we keep group 3 (the fish that swim below the pipe) constant, say 1, and increment the other two (group 2 starting off at 1) we find 98 possibilities.
98 + 1 + 1 = 100,
97 + 2 + 1 = 100,
96 + 3 + 1 = 100
. . . 98 possibilities
Now we take group 1 as one greater (1 + 1 = 2) and then start incrementing group 2 starting from 1 as done before. So 97 + 2 + 1 = 100. Followed by 96 + 3 + 1, 95 + 4 + 1...97 possibilities
If we continue this pattern, we have 98 + 97 + 96... + 1 total possibilities to partition this school of fish.
98 + 97 + 96... + 1,
Sum = n(n + 1)/2 = 98(98 + 1)/2 = 98(99)/2 = 4851
<u>Let's take this problem step-by-step</u>:
<u>Let's take the case of the tennis ball first</u>:
⇒ the diameter of the balls are 2.7inches
⇒ therefore they are spheres with diameters of 2.7 inches
⇒ <em>for an x-ray</em> <u>they are circles with a diameter of 2.7in</u>
<u>Now for the cylinder container</u>:
⇒ It has a width of 2.7inches
⇒ Its height:
⇒ is three balls stacked together
⇒ Height is 3 * 2.7in = 5.4 inches
⇒ <u>Overall dimension: A rectangle that is 2.7 in x 8.1 in</u>
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<u>Answer:</u>
- <u>A circle with a diameter of 2.7 in</u>
- <u>A rectangle that is 2.7 in x 8.1 in</u>
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Hope that helps!
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