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Ronch [10]
3 years ago
7

Kaltlin bought some books for $6 each and received a discount of $8 off of her total purchase. She spent $58 after the discount.

How many books did she buy?​
Mathematics
2 answers:
MrRissso [65]3 years ago
4 0

Answer:

I might have bought about 9 books

Sergio [31]3 years ago
4 0
She bought 11 books because her original total was 66$ minus the 8$ discount would be the 58 so u take the 6 and 66 and find the multiple of it witch is 11 I believe so.
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10 - 0.08 = 9.92
so yur answer is 9.92
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3 years ago
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Alexeev081 [22]

Answer:

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Step-by-step explanation:

For each conference game, there are only two possible outcomes. Either the team wins it, or they lose. The probability of winning a game is independent of any other game. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which 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)!}

And p is the probability of X happening.

A football team has a probability of .75 of winning when playing any of the other four teams in its conference.

The probability means that p = 0.75, and four games means that n = 4

If the games are independent, what is the probability the team wins all its conference games?

This is P(X = 4). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 4) = C_{4,4}.(0.75)^{4}.(0.25)^{0} = 0.3164

0.3164 = 31.64% probability the team wins all its conference games

4 0
3 years ago
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lord [1]

Answer:

well its 2/5

Step-by-step explanation:

because its 4/10 but you wanted to simplify it so its 2/5

brainlist? its the crown btw

8 0
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Answer:

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3 years ago
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