Mathematics Middle School

Which of the following expressions are equivalent to 18x + 12 – 4? Select three that apply.
A
26x

B
30x – 4

C
18x + 8

D
2(9x + 4)

E
2(9x + 12 – 4)

F
6(3x + 2) – 4

Answers

Answer 1

Answer:

C 18x + 8

D 2(9x + 4)

F  6(3x + 2) – 4

Step-by-step explanation:

hope this helped you =)

Related Questions

5x - 29.4 + 1/2x when x is 11/5

Answers

Answer:

-17.3

Step-by-step explanation:

Evaluate 5 x + x/2 - 29.4 where x = 11/5:

5 x + x/2 - 29.4 = 5×11/5 - 29.4 + 1/2×11/5

Hint: | Express 5×11/5 as a single fraction.

5×11/5 = (5×11)/5:

(5×11)/5 - 29.4 + (11/5)/2

Hint: | Express (11/5)/2 as a single fraction.

(11/5)/2 = 11/(2×5):

(5×11)/5 - 29.4 + 11/(2×5)

Hint: | Cancel common terms in the numerator and denominator of (5×11)/5.

(5×11)/5 = 5/5×11 = 11:

11 - 29.4 + 11/(2×5)

Hint: | Multiply 2 and 5 together.

2×5 = 10:

11 - 29.4 + 11/10

Hint: | Approximate 11/10.

11/10≈1.1:

11 - 29.4 + 1.1

Hint: | Evaluate 11 + 1.1 using long addition.

| 1 | 1. | 0

+ | | 1. | 1

| 1 | 2. | 1:

12.1 - 29.4

Hint: | Factor out a negative sign in 12.1 - 29.4 in order to subtract.

12.1 - 29.4 = -(29.4 - 12.1):

-(29.4 - 12.1)

Hint: | Subtract 12.1` from 29.4`.

| 2 | 9. | 4

- | 1 | 2. | 1

| 1 | 7. | 3:

Answer: -17.3

the answer is -17.3 hope this helps

YA'LL I'M I NEED HELP

Answers

Answer is b all you had to was count the little lines and then find the negative then find the big number I AM NOT ENTIRELY SURE BTW

I don't understand this- I'm trash at math TvT

Answers

Answer:

1. 28.52 min

2. 8.23 miles per min

Step-by-step explanation:

1.

[tex]3.1mi(\frac{9.2min}{1mi})=28.52min[/tex]

2.

[tex]25.5min/3.1mi= 8.2258 \frac{mi}{min}[/tex]

Which choice written in standard form best represents the expression?

(3g - 7 + 5g) - (-8g + 4)



Question 2 options:

11g + 3


16g + - 3


11g + -11


16g + -11

Answers

Answer:

16g+-11

Step-by-step explanation:

3g-7+5g+8g-4 (opening the brackets)

CLT

3g+5g+8g-7-4

16g+-11

The answer is 16g + -3
just open the parentheses and do the variables first( included the sign that is in-front of it too) and then do the normal #

Timothy’s earnings vary directly with the number of hours he works. He worked 40 hours and earned $760.00. Which equation represents the relationship between the number of hours Timothy works, x, and his earnings, y?

y = 76x
y = 19x
y = 40x
y = 14x

Answers

Answer:

y=76x

Step-by-step explanation:

Answer:

y=76x

:)

Step-by-step explanation:

the scale of the picture shown is 1cm : 3 in. find the actual height of the cup

Answers

please redo this question and give us the picture!
Maybe give me the picture so I can do it

What is the greatest common factor (GCF) of 72 and 81?
A. 12
B. 3
C. 9
D. 6

Answers

Answer:

c)9 i think

hope it will help you......please mark Brainliest .......
the answer is c which is 9

help me = crown :3 tysm

Answers

Answer:

B. 77

Step-by-step explanation:

because (72 + 97 + 82 + 77) ÷ 4 = 82

Pls Brailniest! ;) It would mean a lot.

Answer:

77

Step-by-step explanation:

If you add all the numbers you would get 251 and if you divide that by 3 you get 83.67. So what I did to get a mean of 82 was add those 3 numbers then the individual answer choice. so 72+97+82+77=328. 328/4 is equal to 82

A tub is filling up at 7 gallons of water in 2 minutes. At this rate, how long will it take the tub to fill up if it can hold 63 gallons of water?

Answers

18 minutes because 63 divided by 7 is 9 and you would have to do 9 multiplied by 2 minutes to get your total minutes which is 18 minutes

HELPP Me With this question

Answers

Answer:

Line CB= undefined, line CD= zero, line DA= undefined, line BA= -2/3

Step-by-step explanation:

Hope is correct i did it all in my head

Line cb is undefined

Which expression is equivalent to (8.4x+2.9)+(−3.7x+5)?

Will give brainliest for the best answer & explanation!

A
−4.7x+7.9

B
4.7x+7.9

C
−12.1x+7.9

D
12.1x+7.9

Answers

the answer would be B. 4.7x+7.9

Step-by-step explanation:

so we know that

(8.4x+2.9)+(−3.7x+5)= 4.7x+7.9

so we need an equivelant to 4.7x+7.9

A. −4.7x+7.9= -1/10x(47x-79)

B.=4.7x+7.9=1/10x(47x+79)

C.−12.1x+7.9=-1/10x(121x-79)

D.12.1x+7.9=1/10x(121x+79)

So the answer would be B!

Hope this Helps!

4.How does the function y = -2x + 6 differ from the linear parent function?
(parent is just y=x)

Answers

The function y= -2x + 6 differs from the linear parent function y=x because it is y=mx+b

A integer can be represented by the equation x+x+2+x+4=66-x . What is the value of x?

Answers

answer would be x=15

Laura's yard is in the shape of a square and a half-circle.
Please Help

Answers

Answer: i'm pretty sure it is c if its not i am soooooooooooooooooooooooo sorry

Step-by-step explanation:

I think it’s d but I’m not a 100% sure soooooooorrrrrrrrryyyyyyyyyy :(((((((

A football team loses 3 yards on each of 4 consecutive plays. Find the total change in yards from where the team started.

Answers

Answer:

-12

Step-by-step explanation:

If you lose 3 yards for EACH of the 4 plays, than the equation is -3x4=-12

-12, If your loosing 3, it’ll be a negative number. If you loose 3 yard 4 times, it’ll be multiplying -3 • 4 and when multiplying two numbers that have different signs, the product will be negative. So, if you just multiply 3x4 it’ll equal 12. But they have different signs so it’ll be -12. :)

Henrietta has a box of fruit with a mass of 88 dekagrams. What is the weight of the box of fruit in kilograms?
A)0.88 kilograms
B)8.8 kilograms
C)880 kilograms
D)8,800 kilograms

Answers

it’s A
Step-by-step-explanation
The answer is A)0.88 kilograms

Jeremy bought a $60 pair of sneakers on sale for 15% off. Then, he used a coupon that gave him an additional 10% off. Can Jeremy find the cost of the sneakers by adding the percents?
by finding 25% off of $60, and
by finding 15% off of $60, and then subtracting 10% from that cost.
Complete the explanation.

25% off of $60 is equal to $
.

15% off of $60, then subtracting 10% from that cost, is equal to $
.

Are the two total costs equal? Enter yes or no.

Answers

Answer: No

Step-by-step explanation: you have to subtract 60$ and 15% and then subtract 45$ and 10%. Equals 35$ the total cost.

$60 - 15% is $51 (15% of $60 is 9)
$51 - 10% is $45.90 (10% of $51 is 5.10)
No store can combine two coupons to give you higher percentage of discount . So he will end up paying $45.90 when used both coupons.

Coffee beans are packaged in 50 kg cartons with an allowable error of 2%. What is the acceptable weight range for a carton of coffee beans? *
49 to 51 kg
49.3 to 50.7 kg
46 to 53 kg

pick 1 pls ill give brainleist
43 to 57 kg

Answers

Answer:

b

Step-by-step explanation:

Please help me i don't get these!!!!

Answers

Answer:

the first one is d

Step-by-step explanation:

Answer:

1. D) D'(-4,0)

2. B) 11

Step-by-step explanation:

2.  5x+1+12x-8=180

17x-7=180

17x=187

x=11

Bill studied t hours for a big test. Catherine studied one third as long. Write an algebraic expression for long Catherine studied.

Answers

Answer: x= 1/3t

Step-by-step explanation: I think

x=1/3t i’m pretty sure

An otter can swim at a rate of 20 feet in 12 seconds. How far does the otter swim in 90 seconds?

Answers

Answer:

150

Step-by-step explanation:

The answer is 150 feet. Just do 90 divided by 12 which gives you 7.5 then multiply 20 by 7.5 and you get 150.

A line connects points A and B ( -5,5 and -5,-3) as shown below. If a third point, C, is plotted six units to the right of point B, what will be the area of the resulting right triangle?

Answers

1,5 is the answer my guy!
You will get this easily by putting it on a real graph which should help u get the answer by plugging the points in

What is the equation of this line in Slope-Intercept Form?


Answer Choices:
y = 2x + 3
y = 3x + 1/2
y = 1/2x + 3
y = 3x + 2

Answers

Answer:

the first one

Step-by-step explanation:

Answer:

y = 2x + 3

Step-by-step explanation:

because the y intercept is 3 based on the graph then i found two points (-4,1) and (-2,2) then i used solved. -4+2=-2 , 1-2 =-1  which means that you get -2/-1 which equals 2

This is the third time I have asked this question. Someone please answer! Brainlist IF possible. Use the graph to write a linear function that relates y to x.

Since I have asked this same question three times, you can answer the copies for extra points. One is 8 points and the other 10.

Answers

Answer:

Use the graph to write a linear function that relates y to x. The points lie on a line. Find the slope and y-intercept of the line. Because the line crosses the y-axis at (0, −3), the y-intercept is −3.w

Step-by-step explanation:

There are three standard forms for linear functions y = f(x):

f(x) = mx + b (The "slope-intercept" form),

y - yo = m(x - x0) or, equivalently, f(x) = y0 + m(x - x0) (The "point-slope" or "Taylor" form), and.

Ax + By = C (The "general form") which defines y implicitly as a function of x as long as B 0.

Answer:

Use the graph to write a linear function that relates y to x. The points lie on a line. Find the slope and y-intercept of the line. Because the line crosses the y-axis at (0, −3), the y-intercept is −3.w

Step-by-step explanation:

There are three standard forms for linear functions y = f(x):

f(x) = mx + b (The "slope-intercept" form),

y - yo = m (x - x0) or, equivalently, f(x) = y0 + m(x - x0) (The "point-slope" or "Taylor" form), and.

Ax + By = c (The "general form") which defines y implicitly as a function of x as long as B 0.

can i have brainiest

PLZ HELP ASAP
What is the slope of the graph?
1
1/2
2
3

Answers

Answer:

I believe this answer would be D.

Step-by-step explanation:

Let's see what other people say though... :) lol

The answer is 3 on the y axis goes up 3 and it’s where the slope intercepts the y axis

find the ordered pair (x,y) that is a solution to the equation

x-4y=8

Answers

Answer:

(4,-1)

Step-by-step explanation:

x-4y=8

-4y=-x+8

y=1/4x-2

The solution to the equation x - 4y = 8 is an ordered pair (4,-1).

What is the solution to the equation?

A solution to an equation is a number that can be substituted for the variable to provide a true number statement.

The equation is given in the question, as follows:

x - 4y = 8

To determine the ordered pair (x,y) of the solution, substitute the value of x = 4 in the equation, and solve for y:

4 - 4y = 8

- 4y = 8 - 4

- 4y = 4

y = - 4/4

Divided by -4 into both sides of the equation, we get

y = - 1

Thus, the solution to the equation is an ordered pair (4,-1).

Learn more about the solution to the equation here:

brainly.com/question/15272274

#SPJ2

What is the area of the trapiziod

Answers

550 i’m pretty sure......

Answer:

950 feet

Step-by-step explanation:

the area of a triangle is a=(bh) 1/2

plug in the values for a triangle into that equation, then do it to the other triangle.

add the solutions to get 150 feet

then find the area of the rectangle: 20 x 40= 800

add 800 and 150 to get the total area: 950 feet

Nikolas and Jayson recorded the number
of miles each ran over two years.
Miles Ran
Year Nikolas Jayson
Last Year 1,362 1.948
This Year 1,982 1.013
A. Write and solve equations to find
how many more total miles Nikolas
and Jayson ran last year than
this year.
B. Estimate how many more miles
were run last year than this year by
rounding each number in the table
to the nearest hundred and solving
the problem. Use the estimate to 1
check your answer to Part Als
reason

Answers

Answer:

6,219 .065

Step-by-step explanation:

The answer is 6,219.065

6. The table shows the equations Ms. Valez discussed in math class today.


Explain the pattern of zeros in the product when multiplying
by powers of 10.

Answers

Answer:

One zero is always added when the power is added by +1

Step-by-step explanation:

one zero is always added when the power is added by 1

1. Find the simple interest.
$2,700, 8.2%, 3 months
2.Find the ending balance.
$2,700, 8.2%, 3 months
3. Find the simple interest.
$725, 6.25%, 1 year
3. Find the ending balance.
$725, 6.25%, 1 year
ASAP I WILL MARK BRAINLIESTT

Answers

Answer:

The first one is 648 and the second one is 11,600

Step-by-step explanation:

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