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mina [271]
3 years ago
8

Simplify the expression and show your work. 4y+5=-31

Mathematics
1 answer:
kondor19780726 [428]3 years ago
3 0
4y +5=-31 \\ 
4y+5-5 = 31-5 \\ 
4y=-36 \\ 
4y/4=-36/4 \\ 
y=-9 \\ 
Check: \\ 
4(-9)+5=-31 \\ 
-36+5=-31 \\ 
-31=-31
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Answer:

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Step-by-step explanation:

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3 years ago
A random sample of 184 students at South High School were surveyed on whether they would prefer going to a movie or a concert. T
telo118 [61]

The correct statements are as follows;

42% of the students prefer a concert over a movie.

A greater ratio of 11th graders prefer a concert to a movie

The difference in the percent of students who prefer a movie over a concert is 16%

Given that

A random sample of 184 students at South High School was surveyed on whether they would prefer going to a movie or a concert.

              10th   11th   12th   total

Movie       .18    .16     .24    .58

Concert     .15     .18     .09   .42

Total           .33     .34    .33    1

According to the question

The marginal relative frequency for 10th graders is 0.18.  

This is an incomplete statement.

The marginal frequency is a number, not a percent.

42% of the students prefer a concert over a movie.  

42% preferred a convert to the 58% who preferred a movie.  

This statement is True.

A greater ratio of 11th graders prefers a concert to a movie.

18/100 concert to 16/100 for the movie for 11th graders.

\rm = (0.58 -0.42) \times  100 \\\\ =0.16 \times 100\\\\= 16 \ percent

 More 12th graders were surveyed than any other grade level.

There were more 11th graders surveyed (34%) to (33%) for 12 graders False

The difference in the percent of students who prefer a movie over a concert is 16%.  

To know more about Probability click the link given below.

brainly.com/question/25996348

4 0
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median : Put the numbers in order from smallest to largest and the middle number is the answer.
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3 years ago
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Answer:

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Step-by-step explanation:

Radius=1yd

Height=2~yd

Volume ~of ~cylinder=

  • \pi  r^2h
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<u>------------------------------</u>

hope it helps...

have a great day!!

3 0
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Answer:

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Step-by-step explanation:

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