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3 years ago

Add and simplify 7 7/8-3 1/4

Mathematics

2 answers:

poizon [28]3 years ago

6 0

Your answer should be 4 5/8.

strojnjashka [21]3 years ago

3 0

7 7/8 + (-3 1/4) =
7 7/8 - 3 1/4 =
63/8 - 13/4 =
63/8 - 26/8 =
37/8 =
4 5/8 <==

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Required information NOTE: This is a multi-part . Once an answer is submitted, you will be unable to return to this part A club

algol13

Answer:

491400

Step-by-step explanation:

Given : A club has 28 members.

To Find : . How many ways are there to choose four members of the club to serve on an executive committee?

Solution:

We are supposed to choose four members of the club out of 28.

So, we will use combination

Formula : $^nC_r=\frac{n!}{r!(n-r)!}$

n = 28

r = 4

Substitute the values :

$^{28}C_{4}=\frac{28!}{4!(28-4)!}$

$^{28}C_{4}=\frac{28 \times 27 \times 26 \times 25 \times 24!}{4!(24)!}$

$^{28}C_{4}=\frac{28 \times 27 \times 26 \times 25 \times 24}{4 \times 3 \times 2 \times 1}$

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Hence there are 491400 ways o choose four members of the club to serve on an executive committee

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PSYCHO15rus [73]

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2 years ago

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Answer:

Step-by-step explanation:

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