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Katyanochek1 [597]
3 years ago
14

What are the values of x and y?

Mathematics
1 answer:
muminat3 years ago
5 0

Answer:

x =5, y = 22

Step-by-step explanation:

5y + 79 + 5y + 61 = 360

10y = 220

y = 22

2x + 7 = 4x - 3

-2x = -10

x = 5

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There are 38 people in line to ride the bumper cars. 8 people can go in each round. How many people will ride in the last round?
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Answer:

6

Step-by-step explanation:

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3 years ago
The rabbit population in a forest area grows at the rate of 9% monthly. if there are 270 rabbits in july, find how many rabbits
sukhopar [10]
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1. 3,742 x 6= help with step by step
xenn [34]

Answer: The answer is 22,452

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3 years ago
You are making identical gift bags using 12 crayons and 28 bottles of bubbles. What is the greatest number of gift bags you can
const2013 [10]
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4 0
3 years ago
A production process is known to produce a particular item in such a way that 5 percent of these are defective. If two items are
IRINA_888 [86]

Answer:

0.0025 = 0.25% probability that both are defective

Step-by-step explanation:

For each item, there are only two possible outcomes. Either they are defective, or they are not. Items are independent of each other. 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.

5 percent of these are defective.

This means that p = 0.05

If two items are randomly selected as they come off the production line, what is the probability that both are defective

This is P(X = 2) when n = 2. So

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

P(X = 2) = C_{2,2}.(0.05)^{2}.(0.95)^{0} = 0.0025

0.0025 = 0.25% probability that both are defective

4 0
3 years ago
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