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kozerog [31]
3 years ago
6

Write an expression for "19 more than a number y."

Mathematics
1 answer:
SVEN [57.7K]3 years ago
8 0

Answer:

y+19

Step-by-step explanation:

simply because when it says "more than" or "less than" you have to flip it so it wouldnt be 19+y.

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Answer:

The answer is option c) 17

Step-by-step explanation:

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We're going to be using combination since this question is asking how many different combinations of 10 people can be selected from a set of 23.

We would only use permutation if the order of the people in the committee mattered, which it seems it doesn't.

Formula for combination:

C(n,r)=\dfrac{n!}{(n-r)!r!}

Where n represents the number of objects/people in the set and r represents the number of objects/people being chosen from the set

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C(23,10)=\dfrac{23!}{(23-10)!10!}

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Usually I would prefer solving such fractions by hand instead of a calculator, but factorials can result in large numbers and there is too much multiplication. Using a calculator, we get

=1,144,066

Thus, there are 1,144,066 different 10 person committees that can be selected from a pool of 23 people. Let me know if you need any clarifications, thanks!

~ Padoru

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To answer this question, there needs to be choices provided since the description you provided states "which of the following".

Step-by-step explanation:

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