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Ket [755]
3 years ago
13

Combine the like terms to create an equivalent expression 2r+1+(-4r)+7

Mathematics
1 answer:
tekilochka [14]3 years ago
8 0

Answer:

2r+1+(-4r)+7

2r+8-4r

-2r+8<--- answer

Step-by-step explanation:


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Pleaseee help <br><br> What choices are real numbers? Check all that apply.
7nadin3 [17]

Answer:

what  you arest mine but the other one says no answer what

Step-by-step explanation:

6 0
3 years ago
Sajia has 30 Books in her library. she sold 9 books at the thrift store on Saturday. Write and solve and inequality to determine
ELEN [110]

Sajia can sell 21 books she can sell if she comes back on sunday and the required inequality is 9 + x \leq 30

<em><u>Solution:</u></em>

Given that Sajia has 30 Books in her library

She sold 9 books at the thrift store on Saturday

To find: We have to write and solve an inequality to determine number of more books she can sell if she comes back on sunday

Let "x" be the number of more books she can sell if she comes back on sunday

<em><u>We can write a inequality as:</u></em>

\text{ books already sold } + \text{ number of books remaining } \leq \text{ total number of books she has }

9 + x \leq 30

Now moving 9 from L.H.S to R.H.S we get,

x \leq 30 - 9

On solving 30 - 9 = 21,

x \leq 21

So Sajia can sell 21 books she can sell if she comes back on sunday

6 0
3 years ago
Anyone know how to find the constant of proportionality???!!!
dmitriy555 [2]

Answer:

You find the constant of proportionality by how much u need to add or subtract the same number to get the same answer and in a graph you need to see if the line goes through the origin (0,0).

Step-by-step explanation:

5 0
3 years ago
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Based on the figure below, what is the value of x?<br> BRAINLIEST<br> PLEASE HELP<br> SHOW WORK
Semenov [28]

Answer:

11

Step-by-step explanation:

5x+15+20=90

5x+35=90

-35 from both sides

5x=55

divide both sides by 5

x=11

7 0
3 years ago
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FIND THE MEDIAN OF THE DATA SET3,35,23,37,45,49,27,48<br> A.35<br> B.34<br> C.30.2<br> D.38
mojhsa [17]

Answer:

A. 35

Step-by-step explanation:

The median of a data set is the middle value when the data values are placed in order of size.

<u>Given data set</u>:

  • {3, 35, 23, 37, 45, 5, 49, 27, 48}

Place the data in <u>order of size</u>:

  • {3, 5, 23, 27, 35, 37, 45, 48, 49}

To find the median, divide the total number of data values (n) by 2.

  • If n/2 is a whole number, the median is halfway between the values in this position and the position above.
  • If n/2 is not a whole number, round it up to find the position of the median.

As there are 9 data values, the median value is:

\implies \dfrac{9}{2}=4.5 \implies \sf 5th\;value

Therefore, the median of the given data set is 35.

4 0
1 year ago
Read 2 more answers
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