Hi, can you help me answer this question (−3x + 7) − (4x − 8)

Answers

Answer 1

Answer:

Let's simplify step-by-step.

−3x+7−(4x−8)

Distribute the Negative Sign:

=−3x+7+−1(4x−8)

=−3x+7+−1(4x)+(−1)(−8)

=−3x+7+−4x+8

Combine Like Terms:

=−3x+7+−4x+8

=(−3x+−4x)+(7+8)

=−7x+15

Answer:

=−7x+15

Step-by-step explanation:

Answer 2

Answer:

15+7x

Step-by-step explanation:

(−3x+7)−(4x−8)

To find the opposite of 4x−8, find the opposite of each term.

−3x+7−4x−(−8)

The opposite of −8 is 8.

−3x+7−4x+8

Combine −3x and −4x to get −7x.

−7x+7+8

Add 7 and 8 to get 15.

−7x+15


Related Questions

brainlist asap, please help i need to boost my grade in math ♡´・ᴗ・`♡
♡︎♡︎♡︎♡︎♡︎♡︎♡︎♡︎♡︎♡︎♡︎♡︎
question: mona borrowed $6000 for college expenses. After 2 1/2 years she will have paid $750 in interest. What is the interest rate? ______

Answers

Answer:

5250

i hope this is right.

Answer:

5250

Step-by-step explanation:

person on my top got it ^

A runner burns 100 Calories for every 15 minutes spent running. How many hours of running would it take for a runner to burn 600 Calories?

Answers

100 calories every 15 minutes
600/100 = 6
6 * 15
90 minutes
Hour and a half
It would take 90 minutes or 1 hour and 30 minutes to burn 600 calories.

600 divided by 100 equals 6. Multiply 6 and 15 and you’ll get 90. So the answer is 90 minutes (1 hour and 30 minutes)

Hope this helped :)

Evan is making a table that will be created of the figure below. The table top is a triangle attached to a rectangle. To purchase the right amount of paint he needs to know the area of the table top He can only spend 10 on paint which is enough to cover 150ft of surfaces area. What is the max length of the base of the the rectangle he can build

Answers

Answer:

23 ft

Step-by-step explanation:

The computation of the maximum length of the base of the triangle is as follows:

Area of triangle is = 4 × 6 ÷ 2

= 12 ft²

Now the maximum area of the rectangle is

= 150 - 12

= 138 ft²

L = ?

W = 6 ft

Area of rectangle is  = L × W

L × 6 = 138

L = 138 ÷ 6

= 23 ft

what is the difference between 75.847 and 47.964?

Answers

Answer:

27.883

Step-by-step explanation:

75.847

-47.964

27.883

ANSWER: 27.883
hope this helps :)

Can Someone help me!

Answers

Answer:< IJL= 63°

Step-by-step explanation:

as AB||CD, EF||GH, KLJI is a paralellogram, & the opposite angles of paralellogram are equal. So,< IJL= <IKL=63°

please i really really need help BRAIBLIST ASAP

Answers

After 10 years Lori will have 27 dollars more than Darryl (I took the test)

0.4,0.7,1.0,1.3 what is the sequence rule

Answers

Answer:

3 plus 3, that is the sequence

X + 7/8 = 23/8

Please help

Answers

Answer:

x=2

Hope I helped

Answer:

X=2

Step-by-step explanation:

Please mark brainliest.

----------- are used to represent an unknown quantity in a mathematical expression.

HELP I WILL GIVE BRAINLEIST

Answers

A letter or symbol is used to represent an unknown quantity

Answer:

variables

Step-by-step explanation:

I need help need it done in 20 minutes will give 20 points each

Answers

Answer:

Lets start by isolating for one variable In this case I chose y -7x-2y=14 -2y=14+7x y=-7 -3.5x (1)

Next plug the y into the second equation to solve for x

6x+6(-7 -3.5x) =186x+(-42)+ (-21x) =18 6x-21x= 60 -15x=60x=-4

Now we know x and we can plug into the original equation (1)

x= -4 y= -7 - 3.5× -4 y= 7

Rate brainlist and drop a follow for future help

Answer:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    6*x-6*y-(18)=0  

STEP

1

:

Pulling out like terms

1.1     Pull out like factors :

  6x - 6y - 18  =   6 • (x - y - 3)  

Equation at the end of step

1

:

STEP

2

:

Equations which are never true:

2.1      Solve :    6   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Equation of a Straight Line

2.2     Solve   x-y-3  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

Step-by-step explanation:

x= 1 y= 1

hope am right if i am, pls brainliest

How do you find the mean and standard deviation?

Answers

To find the mean you have to add up all the numbers, then divide by how many numbers there are. To find standard deviation you need to find the mean, then for each data point, find the square and it’s distance to the mean, sum the values, then you divide by the number of data points.

1.) Name the corresponding
sides and angles.

Answers




Corresponding sides:
EF, HI
FG, IJ
EG, HJ
Corresponding angles:

whats y'alls answer streak, mine is 10. Highest gets brainiest!

Answers

Answer:

20 :3

Step-by-step explanation:

Answer:

lol currently I'm at 14, good job! I hope you have a good day, stay safe, and Happy holidays!

Step-by-step explanation:

Help need it asap
8th grade math

Answers

Answer:

x = 7

Step-by-step explanation:

Given

2(2x + 1) = 30

4x + 2 = 30

4x = 30 - 2

4x = 28

x = 28/ 4

x = 7

Hope it helps :)

Answer:

x= 7

Step-by-step explanation:

2(2x+1) =30

2×2x+2×1=30

4x+2=30

4x=30-2

4x=28

x=28÷4

x=7

Helpppp meeee fassttt pleaseeee

Answers

Answer:

 y = -1/3x + 3 2/3

Step-by-step explanation:

step 1. find the slope of the given line

y2-y1/x2-x1          2 - 4/ 3 + 3 = - 1 / 3

take the opposite of that and there is your slope

step 2. plug in the values to the following equation using the given point:

y - y1 = m ( x - x1 )          y - 4 = - 1/3 ( x + 1 )

step 3. solve for y

y-4 = -1/3(x+1)

-1/3(x) and -1/3(1)  ----> y-4 = -1/3x-1/3

y-4+4 = -1/3x-1/3+4  ---->  y = -1/3x + 3 2/3

hope this helps. if you need more help lmk in the comments. i am in algebra two so you can trust me. Happy holidays

Which is the completely factored form of 4x + 1Ox-6x?
2(x+3)(2x-1)
2x(x + 3)(2x- 1)
2x(x -3)(2x- 1)
2(x-3)(2x + 1)

Answers

Answer:

2(x+3)(2x-1)

Step-by-step explanation:

100 pts..[tex]ANSWER this question for your God's sake PLZ..[/tex]

Answers

Answer:

Step-by-step explanation:

a) [tex]5y+ab[/tex]

b) [tex]f^{3} -3\\[/tex]

c) [tex]6kq[/tex]

d) [tex]\frac{3xy}{2w} \\\\[/tex]

e) [tex]3x-4\sqrt{z} \\[/tex]

f) [tex]\frac{2p}{5q} \\\\[/tex]

[tex]a) 5y+ab5y+ab

b) \begin{gathered}f^{3} -3\\\end{gathered}

f

3

−3

c) 6kq6kq

d) \begin{gathered}\frac{3xy}{2w} \\\\\end{gathered}

2w

3xy

e) \begin{gathered}3x-4\sqrt{z} \\\end{gathered}

3x−4

z

f) \begin{gathered}\frac{2p}{5q} \\\\\end{gathered}

5q

2p

[/tex]

Any help please I appreciate it thank you

Answers

Answer:

20 feet

Step-by-step explanation:

Parimeter is how far you would walk if you made a lap around the shape, walking on the edge lines like a balance beam.

To find perimeter, we need to add up all the sides.

Because it's a square each side has the same length.

There are 4 sides.

5 x 4 = 20

or 5 + 5 + 5 + 5 = 20

The perimeter is 20 feet

a
29
Solve each percent equation. Remember "of" means multiply and "is" means equal.
At your school, 74% of students bought their lunch at the cafeteria. There are
1250 students in the school. How many students bought their lunch?
925
students who brought their lunch. YUM!!

Answers

Answer

925 students brought their lunch.

Explanation

First let's rewrite the equation.

You know that "of" means multiply and "is" means equal.

Okay, so let's break it down.

The question says, "At your school, 74% of students brought their lunch at the cafeteria. There are 1250 students in the school."

This means that 74% of 1250 students brought their lunch at the cafeteria.

You are trying to find how many students brought their lunch. This will be x.

So the equation would be this.

74% × 1250 = x

74% is 0.74.

0.74 × 1250 = x

0.74 × 1250 = 925

So 925 students brought their lunch.

3 1/2 miles in 1/2 hour

Answers

Answer:

? 7 miles an hour i guess

will give brainliest !
The state fair is a popular field trip destination. This year the senior class at High School A and
the senior class at High School B both planned trips there. The senior class at High School A
rented and filled 5 vans and 9 buses with 309 students. High School B rented and filled 12 vans
and 9 buses with 414 students. Every van had the same number of students in it as did the buses.
How many students can a van carry? How many students can a bus carry?

Answers

Answer:

15 students/van

26 students/bus

Which equation represents the line whose slope is 2 and y-intercept is 6? a. 2y + 6x = 0 b. y = 6x + 2 c. y = 2x + 6 d. y + 2x = 6

Answers

Answer:

c. y=2x+6

Step-by-step explanation:

In slope intercept for (y=mx+b) m is the slope and b is the y-intercept.

In parallelogram MNPT, MZM - (6x + 10% and m2N - (5x + 10.5. How many
degrees is ZT?

Answers

It will be 69• degreessssss bro bor8182)2(/

the area of a rectangle is 72cm2, in which the width is twice the length. what are the dimensions

Answers

Answer:

Dimension: 2inches by 4 inches

Step-by-step explanation:

Given

[tex]Width = 2wice\ Length[/tex]

Required

Determine the dimension.

This is calculated as :

[tex]Area = Length * Width[/tex]

[tex]A = L * W[/tex]

So:

[tex]A=L * 2L[/tex]

[tex]A=2L^2[/tex]

Substitute 72 for A

[tex]72=2L^2[/tex]

Divide bith sodes by 2

[tex]36 = L^2[/tex]

Take square root of both sides

[tex]L = 6[/tex]

Recall that:

[tex]Width = 2 * Length[/tex]

Hence:

[tex]LEnhth= 0 * 2[/tex]

[tex]LEnhth= 2[/tex]

Hence, the dimension is: 2 by 3 inches

A 500 yard train travels at a constant speed. A motorcyclist rides at a constant speed on the highway parallel to the train tracks. The motorcyclist starts at the rear of the train and drives to the very front of the train, and then falls back to the rear of the train. As the motorcycle completes this cycle, the train travels 1200 yards. How far did the motorcyclist travel?

Answers

Answer:

120/2 = x/5....120 miles to 2 hrs = x miles to 5 hrs

cross multiply

(2)(x) = (120)(5)

2x = 600

x = 600/2

x = 300....the motorcyclist would travel 300 miles in 5 hrs

or u could do it this way..

120/2 = 60 miles per hr

60 * 5 = 300 miles

Step-by-step explanation:

Could someone please answer this I will give a brainless if answer correctly and explained

Answers

Answer:

SSS

Step-by-step explanation:

The SSS theorem is the side-side-side theorem. Basically, since all three sides from one triangle is congruent to the corresponding sides of the other triangle, then the triangles have to be congruent. There are other theorems such as the SAS theorem (side-angle-side), but since the question only give us the fact that the sides are congruent, its SSS. Sorry, I hope this is good enough. XD

Select the correct answer.
What is the slope of the linear relationship shown in this table of values?
a.-3
b.-2
c.2
d.3

Answers

Answer:

c

Step-by-step explanation:

I agree with c.2 as well

5. A violinist practices one hour a day from Monday through Friday. How many hours must she practice on Saturday
order to have an average (antharctic meani ot two hours a day for the six day period?
K

Answers

Answer:

7 hours

Step-by-step explanation:

First find the total number of hours she practices based on the average of 2 hours a day for six days.

This means 6*2 = 12 , she practices a total of 12 hours.

Next find the total hours she already practiced. She practices 1 hour a day from Mon to Fri, which is 5 days, so 1*5 = 5 hours. This is the hours she practiced already.

To meet the mean, she needs to practice 12-5 = 7 hours more on Saturday.

please give thanks by clicking the red button :)

Answer:

must practice 7 hours on Saturday

Step-by-step explanation:

Let 'x' = number of hours on Saturday

(5 (hours) + x) / 6 (days) = 2

[tex]\frac{5+x}{6}[/tex] = [tex]\frac{2}{1}[/tex]

Cross-multiply to get 5 + x = 12

GIVIVNG AWAY ALL MY POINTS FOR THIS QUESTION PLS ANSWER

Answers

Answer:

50  miles

Step-by-step explanation:

50 because 1 inch is 20 miles. There is two and a half inches.

please help me graph it!

Answers

Go to 47 on ur y axis and then I think since it’s rise/ run you either can go up 10 over to the right one or down 10 and to the left one because 10=10/1 and rise=10 and run would = the 1
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