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Rzqust [24]
3 years ago
15

This year, a small business had a total renvue of 51,000. If this 36% more than their total renvue the previous year, what was t

heir total renvue the previous year?
Mathematics
1 answer:
kenny6666 [7]3 years ago
5 0

Answer: well your answer is 18360

Step-by-step explanation: so let's say 51,000 is 100% and x is what where looking for, we know x is 36% so write x=36% the you have 51,000=100% now you have two simple equations.

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A straight line is 180 degrees. As a result, 180-35=x, or x=145
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The answer to the question

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Solve the following 2(x+3)=x-4
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Assume that when adults with smartphones are randomly​ selected, 63​% use them in meetings or classes. If 7 adult smartphone
nlexa [21]

Answer:

5.78% probability that exactly 2 of them use their smartphones in meetings or classes.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they use their smarthphone in meetings or classes, or they do not. The probability of an adult using their smartphone on meetings or classes is independent of other adults. So we use the binomial probability distribution 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.

63% use them in meetings or classes.

This means that p = 0.63

7 adult smartphone users are randomly selected

This means that n = 7

Find the probability that exactly 2 of them use their smartphones in meetings or classes.

This is P(X = 2).

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

P(X = 2) = C_{7,2}.(0.63)^{2}.(0.37)^{5} = 0.0578

5.78% probability that exactly 2 of them use their smartphones in meetings or classes.

8 0
2 years ago
Determine the value of y, if x is 5.<br> y= (x +3<br> Answer:<br> Submit Answer
zepelin [54]

Answer:

y=8

Step-by-step explanation:

substitute (plug in) 5 for x because it says that the value of x is 5

4 0
3 years ago
Read 2 more answers
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