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sp2606 [1]
2 years ago
11

Kevin has a ratio of 2 wrong answers to 7 correct answers on his math test. If he got 6 questions wrong, then how many did he an

swer correctly
Mathematics
1 answer:
OlgaM077 [116]2 years ago
7 0

Answer:

21

Step-by-step explanation:

2:7 Ratio

Since he got 6 wrong it 6:?

6/2 = 3

3*7=21

6:21

He got 21 right

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Distribute 8[(x + (-3)]​
Lemur [1.5K]

Answer:

8x-24

Step-by-step explanation:

8(x-3)

8 times x= 8x

8 times-3= -24

8 0
3 years ago
According to the document Current Population Survey, published by the U.S. Census Bureau, 30.4% of U.S. adults 25 years old or o
Marizza181 [45]

Answer:

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they have a high school degree as their highest educational level, or they do not. The probability of an adult having it is independent of any other adult. 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.

30.4% of U.S. adults 25 years old or older have a high school degree as their highest educational level.

This means that p = 0.304

100 such adults

This means that n = 100

Determine the probability that the number who have a high school degree as their highest educational level is a. Exactly 32

This is P(X = 32).

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

P(X = 32) = C_{100,32}.(0.304)^{32}.(0.696)^{68} = 0.0803

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

7 0
2 years ago
Write a real word problem that can be represented by the equation 3/4c=21
svetlana [45]

How many 3/4 cups of milk would be needed to make 21 cups of milk for a large recipe?

4 0
3 years ago
An architect designs a diagonal path across a rectangular patio. The path is 29 meters long. The width of the patio is x meters,
Marina86 [1]

Answer:

D: c^2 + (x+5)^2 = 841

Step-by-step explanation:

edge :)

4 0
3 years ago
Hii please help asap ill give brainliest thanks
lesya692 [45]
The teachings of buddha is the answer :-)
3 0
3 years ago
Read 2 more answers
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