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attashe74 [19]
4 years ago
7

2. Solve for the number.a. 75 is 20 percent of what number?​

Mathematics
2 answers:
pochemuha4 years ago
8 0

Answer: 90

Step-by-step explanation:

You do 75*20%=15 15+75=90

Serga [27]4 years ago
5 0
What is 75 percent (calculated percentage %) of number 20? Answer: 15.
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A bag contains 6 red marbles, 2 white marbles, and 1 gray marble.You randomly pick out a marble,record its color,and put it back
Dominik [7]
You should expect 5. There is one grey marble out of 9 total, and that can be expressed as 1/9. Since you repeat it 45 times, it's 1/9 45 times, or 1/9(45). 

\frac{1}{9} * \frac{45}{1}

1*45 is 45

9*1 is 9.

45/9 is 5.
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<em>Be sure to choose which answer is Brainliest!</em>
8 0
3 years ago
A(x) = -0.015x^3+1.05xA ( x ) = − 0.015 x 3 + 1.05 x gives the alcohol level in an average person's blood x hrs after drinking 8
goldfiish [28.3K]

Answer:

Yes

Step-by-step explanation:

the function that gives the alcohol level is:

A ( x ) = - 0.015 x^3 + 1.05 x

where x is the number of hours.

we need to know if after 4 hours an average person is legally drunk, thus:

x=4

and we substitute this in the function:

A ( 4 ) = - 0.015 (4)^ 3 + 1.05(4)

solving these operations we obtain:

A(4)=-0.015(64)+4.2\\A(4)=-0.96+4.2

A(4)=3.24

the alcohol level after 4 hours is 3.24.

Since a person is considered to be legally drunk if the level exceeds 1.5, and we obtained 3.24 which is greater than 1.5, a person who has been drinking for 4 hours under the conditions indicated by the problem would be considered legally drunk.

5 0
3 years ago
5 Find the area of the polygon.
ikadub [295]
The answer is a and if not D
3 0
3 years ago
What is the measure of angle x?
sammy [17]
The measure of x is 47 

Hope this helped
4 0
4 years ago
Read 2 more answers
4 people can paint a house in 6 hours.
ahrayia [7]

Answer:

24 hours

Step-by-step explanation:

4 people can do the work in 6 hours

4*6 = 24 work hours

It will take 1 person 24 work hours to complete the job

7 0
3 years ago
Read 2 more answers
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