3 years ago

Someone help me out with this question please

Mathematics

1 answer:

sesenic [268]3 years ago

6 0

To solve for y, you need to subtract b from both sides so only y is on the left side of the equal sign.

y = c - b

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Step-by-step explanation:

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Time traveler can take 5 books with him and he has 79 books to choose from how many different ways can the books be selected

AveGali [126]

<u>We are given:</u>

The time-traveller has 79 books, but he can only take 5 books

since we need to find the number of ways he can choose 5 books, we know that the order in which he takes the books does NOT matter

Hence, we will use combination

<u>Finding the number of ways:</u>

Since we will use combination, ₇₉C₅

We know that the formula for combination is (n!) / (r!(n-r)!)

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