Mathematics Middle School

Can someone step by step explain this to me?
Which is a simplified form of the expression -4(3r – 2) – 2(r + 1)?
Whoever helps gets 50 bonus points.

Answers

Answer 1

-4(3r - 2) - 2(r + 1) = 0

-12r + 8 - 2r - 2 = 0

-14r + 6 = 0

-14r = - 6

r = 6/14

r = 3/7

Answer 2

Answer:

[tex]\huge\boxed{\sf -14r+6}[/tex]

Step-by-step explanation:

[tex]\sf -4(3r-2)-2(r+1)\\\\Resolving \ Parenthesis\\\\= -12r+8-2r-2\\\\Combining \ like \ terms\\\\= -12r -2r +8-2\\\\= -14r+6\\\\\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Related Questions

1. Find the median of the following data :
1) 3,1,5,6,3,4,5
2) 3,1,5,6,3,4,5,6

Answers

Answer:

a ) The first step -  arrange them in ascending or descending.

1,3,3,4,5,5,6

then median is to find the middle so -

the middle of this is "4" (there are odd numbers of numbers)

b) the first step- -  arrange them in ascending or descending.

1,3,3,4,4,4,6,6

then median is to find the middle so -

here the middle is 4 and 4 ( there are even numbers of numbers)

so you find average -

4+4/2 = 4

these are the answers I guess.

you have to put all the numbers from least to greatest then scratch off one from each side and do that until you get 1 number left wich should be 4

Find the angle measures. Justify your responses. Given: a||b, m1=71º Find m5, m8

PLEASE NEED BEFORE SUNDAY THE 20TH ASAP! BRAINLIEST TO WHOEVER GETS CORRECT ANSWER FIRST

Answers

I provided the answer in the picture

Which expression represents the multiplicative inverse of -9/7?

A. -7/9
B. 9/7
C.7/9
D.-9/7

Answers

Answer:

i believe the answer would be C

Step-by-step explanation:

im pretty sure you just need to flip the order around so the answer would be 7/2?

I almost a 100% it’s C I’m sorry if that’s wrong:/

Catherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go toward paints. Each tube of paint costs $8.50. Assume that x represents the number of tubes of paint Catherine can buy.

The inequality that best represents this scenario is ___
A. 8.5x + 20 > 54
B. 8.5X - 20 < 54
C. 54 - 8.5X < 20
D. 54 - 8.5X < 20
The number of tubes of paint Catherine can buy is ___
A. At least 5
B. More than 4
C. Less than 4
D. More than 5

Answers

D I think if I am wrong I am sore

brainliest for brainliest??

Answers

Answer:

sure

Step-by-step explanation:

Answer:

yassssssssssssuwujejfjktjkri

763 ÷ 5 = n.

Solve for n.
Question 3 options:

112 r 1

112 r 3

150 r 2

152 r 3

Answers

Answer:

the answer is 152 r of 3

Step-by-step explanation:

763÷5= 152 r3

Your answer is 152 r3

help me with this and get 10 point and bright if right.

Answers

Answer:

A

Step-by-step explanation:

As on X axis line touches the positive number so x will be a real number..after that on y axis the lines touching approximately to 1 or 2 so it mean y is less than or equal to 4

The answer is A...
I hope this helps!

I really need help with this...

Answers

b would be the answer i’m pretty sure , it said TWICE as many push ups so it would be 2x
b is the answer because twice as many push ups

17+50+13+4x
x=
Missing Angle=

Answers

Answer:

4(x+20)

Step-by-step explanation:

hope i helped

Answer:

x=25

Step-by-step explanation:

17+50=67

67+13=80

180-80=100

100/4=25

(Hope this is helpful and correct.)

Please don't judge my picture

Answers

I won’t! it’s very pretty!

ok whatever you like have a good dayyyyyyy

30p + 25r + 20c = 30x6 + 25x4 + 20x9

Answers

on the second part of the equation is it x square or 30 times 6 and so forth?

BRAINLIEST AND NO RANDOM ANSWER
David created two functions. Function A can be represented by y=34x + 2. Function B can be represented by the graph below.
Which of the following statements correctly compares the two functions?



Function A has the greater rate of change and the greater y-intercept.


Function B has the greater rate of change and the greater y-intercept.


Function A has the greater rate of change, and Function B has the greater y-intercept.


Function B has the greater rate of change, and Function A has the greater y-intercept.

Answers

Answer:

i believe in you you can do it!

Step-by-step explanation:

You can do it common now

Kylie read a total of 10 books over 2 months. If Kylie has read 20 books so far, how many months has she been with her book club? PLEASE PLEASE HELP I GIVE BRAINLIEST FOR THE FIRST PERSON THAT ANSWERS!!!!

Answers

Answer:

4 months

Step-by-step explanation:

Evaluate 8.3v + 7.5w when v = 3 and w = 4

Answers

Answer:

54.9

Step-by-step explanation:

8.3 * 3 = 24.9

7.5 * 4 = 30

24.9 + 30 = 54.9

the answer would be 54.9

8.3(3) + 7.5(4)

24.9 + 30 = 54.9

help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer: Its so blurry. I cant see the question

Step-by-step explanation:

For some reason it’s burly so I can’t really see the question

The distance on a map between a student’s house and her job is 6 cm. On the same map, the distance between her house and her school 8 cm. The actual distance from her house to school is 12 km. If d represents the approximate distance in km between her house and her job, what is d?

A.4
B.9
C.48
D.16

Answers

Answer:it B I think

Step-by-step explanation:

I’m not sure though.

The answer is a)4
You get this answer because you need to find out how many km per cm, so you divide 12 by 8. This will get u the answer of how many km per cm. Then you multiply by six cm because this is the length on the map between home and her job. This will get you the answer 4.

Find the equation that represents the proportional relationship in this graph, for y in terms of x.

Answers

The equation of the line is required.

The proportional relation of the graph is [tex]y=\dfrac{1}{7}x[/tex]

Equation of line

Two points of the line are

[tex](0,0)[/tex] and [tex](21,3)[/tex]

[tex]x_1=0[/tex]

[tex]y_1=0[/tex]

[tex]x_2=21[/tex]

[tex]y_2=3[/tex]

The equation of the line is

[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

[tex]\Rightarrow y-0=\dfrac{3-0}{21-0}(x-0)[/tex]

[tex]\Rightarrow y=\dfrac{1}{7}x[/tex]

Learn more about equation of line:

https://brainly.com/question/13763238

A contractor purchases 5 dozen pairs of padded work gloves for ​$67.80. She incorrectly calculates the unit price as ​$13.56 per pair for the expense report. What is the correct unit​ price? What is the​ error?

Answers

Answer:

I think the answer would be $1.13 per pair.

Step-by-step explanation:

It states that there were 5 dozen gloves, a dozen equals 12, or in this case 12 pairs. 5 dozen means there would be 5×12=60 or 60 pairs. 67.80÷60(pairs)=1.13 dollars PER pair.

The error is that she divided with the 5 dozens, instead of individual pairs.

please help ill give brainliest

Answers

I not sure 1 r 2r 3mult by 8 that all I know sorry

Answer:

-8 and reverse

Step-by-step explanation:

dont need one

Jose has scored 206 points on his math tests so far this semester. To get an A for the semester, he must score at least 279 points.

Answers

Answer:

206 + n = 279

Step-by-step explanation:

Spencer shot 24 basketball shots and made 16 shots. What percent of the shots did Spencer miss?

Answers

Answer:

I think it’s 7%

Step-by-step explanation:

he missed 33% of the shots

NEED HELP ASAP (please and thank you)

Answers

Answer:

800

Step-by-step explanation:

i dont know how to explain. i just did the math. hope this helps.

it wouldnt be 600 because thats 1/2 of 1200 not 2/3.  

Answer:800

i put it wrong at first but its 800

I WILL GIVE BRAINLIEST! DO NOT ANWSER IF YOU DON'T KNOW! Guy and Jim work at a furniture store . Guy is paid $185 per week plus 3% of his total sales, in dollars, x, which can be represented by g(x) = 185 + 0.03x. Jim is paid $275 per week plus 2.5 % of his totals sales in dollars, x, which can be represented by j(x) = 275 + 0.025 x . Determine the value of x, in dollars, that will make their weekly pay the same.

Answers

Answer:

X = 18 000

Step-by-step explanation:

185 + 0.03x = 275 + 0.025x

Subtract 0.025x from both sides

185 + 0.005x = 275

Subtract 185 from both sides

0.005x/0.005 = 90/0.005

X = 18 000

Verify by replacing x with 18 000

185 + 0.03(18000) = 275 + 0.025(18000)

185 + 540 = 275 + 450

725 = 725

The equations in this sytem were added to solve for x. What is the value of x?

Answers

Answer:

3rd one (x = 1)

Step-by-step explanation:

18 POINTS HELP !! I WILL GIVE BRAINLIEST!

Answers

Answer: 16

Check: 3/4 (16) + 2 = 14  ||  5/4 (16) - 6 = 14

I hope this helps, and Happy Holidays! :)

Blossom typed 1/8 of her report on Monday. She typed 1/4 of the report of Tuesday. How much of the report does she need to type to finish it on Wednesday?

Answers

Answer:4

Step-by-step explanation:

Answer: 5/8

That's it

Find the slop of the line that passes through (8,4) and (5,2).
(Type your answer in like this; 1/4, for example.)

Answers

Answer:

1/4

Step-by-step explanation:

2/3 because of rise/run

here is the map for the last question

Answers

Hi hi hi hi hintjrjjrjr

Functions 1 and 2 below represent the position (y) of a particle over time (x). Which function is moving faster? Explain your Answer *

Answers

I am not sure about this one, but I’m pretty sure function 1 as 24 divided by 2 is 2, which makes (2,0) and function 1 has (0,2). The higher the line, the greater it is.

According to Hinduism, people are reborn into new physical forms. The form one is born into depends on one’s
a. moksha c. dharma.
b. karma. d. sutra.

Answers

Answer:

B. Karma

Step-by-step explanation:

Think of karma as "good guy," points. The more karma points you have the better off you will be reborn, and if you have low karma you will not reborn into something great.

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