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prisoha [69]
3 years ago
11

Alexsy runs in two cross-country races. He runs the first in 45 minutes and the second in 3.5 hours. Find the ratio of his first

race time to his second race time in its simplest form.
Mathematics
1 answer:
Ivahew [28]3 years ago
5 0

Answer:

9:42

Step-by-step explanation:

First, convert his second run into minutes so its easier to simplify

than divide both the timings by 5

to get the answer as 9:42 as the simplest ratio form

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Answer:

There are 3,659,040 ways he can choose the books to put on the list.

Step-by-step explanation:

There are

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12 nonfiction.

He wants to include

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The order in which the novels, plays and nonfictions are chosen is not important. So we use the combinations formula to solve this problem.

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

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Novels:

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Plays:

4 from a set of 8. So

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2 from a set of 12

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Total:

Multiplication of novels, plays and nonfiction.

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