-8 (x-10) - 3 (x+10)

Answers

Answer 1
1. distribute -8 to x-10 that’s going to be
-8x+80 (the minus sign becomes a plus sign because negative + negative = positive)

2. distribute -3 to x+10 and that’s going to be
-3x-30

what we have right now is -8x+80-3x-30

combine like terms

-8x-3x = -11x
80-30 = 50

ANSWER = -11x + 50




Related Questions

HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Jessica runs between 3 and 7 miles per day. It takes Jessica 12 minutes to run one mile. What is a reasonable amount of time that Jessica spends running every day?
A.
36 minutes
B.
120 minutes
C.
84 minutes
D.
60 minutes

Answers

Answer:

36mimutes

Step-by-step explanation:

Ewan has 48 white tiles and 16 blue tiles. The cost of each white tile is £2.
The cost of each blue tile is £4.
Work out the ratio of total cost of white tiles to the total cost of the blue tiles.

Answers

48 x 2= 96
16 x 4 = 64
96:64
Answer: 12:8
I think

The fraction: 340 | 3/4

Which quotient equals to the fraction?

A: 3/4 divided by 340

B: 340 divided by 3/4

C: 340/45

D: 340 divided by 75

Answers

Answer:

It's A I hope that helps

Step-by-step explanation:

Please help me write an equation for this problem

Answers

Answer:

[tex] an \: equation \: for \: this \: problem \:i s \: \to : \\ \boxed{ 7200 = 12t}[/tex]

Step-by-step explanation:

[tex]let \: the \: distance \: be \to \: d \\ \\ let \: the \: speed \: rate \: be \to \: s \\ \\ let \: the \: time \: of \: action \: be \to \: t \\ therefore \to: \\ s = \frac{d}{t} = 12 = \frac{7200}{t} \\ \\ 7200 = 12t \\ [/tex]

Solve the inequality and graph the solution, please put it on a number line if you can.
200 - 4.5x ≤ 20

Answers

Answer:

x is greater than or equal to 40

Step-by-step explanation:

Find the slope of the line passing through the points (-5,6) and (6,6).
slope:

Answers

Answer:

0

Step-by-step explanation:

the equation on finding slope is y2 - y1/x2 - x1

so it is...

6 - 6 = 0

6 - -5 = 11

0/11 but that doesnt work so I believe the slope is zero because the denominator is not the one being a 0

hope I helped ;)

Answer: its a zero slope

Step-by-step explanation: i just put them on a graph - uh i think there is another way to do it but i forgot

A physical therapy student is adding up the cost of books for the first three semesters of school. The first semester he spent $400, the second semester he spent $515, and the third semester he spent $620. What on average has he spent on books per year?

Answers

Answer:

Im not sure but i think 1535

Step-by-step explanation:

I NEED HELP ASAP PLEASEEEE!!!!!

Answers

Answer:

Step-by-step explanation:

Use Pythagorean theorem.

Hypotenuse² = base² + altitude²

5)  x²  = 12² + 6²

         = 144 + 36

  x²  = 180

x = √180

x = 13.42 ft

6) 25² = x² + 19²

625 = x² + 361

625 - 361 = x²

x² = 264

x = √264

x = 16.25 m

7)  x² = 7² + 576

        = 49 + 576

        = 625

x = √625

x = 25 in

8)  2.5² = 2²+ x²

6.25 = 4 + x²

6.25 - 4 = x²

x² = 2.25

x = √2.25

x = 1.5 yd

The elevator can hold at most 20 people. Which inequality shows the capacity of the elevator.

A

x ≤ 20

B

x > 20

C

x < 20

D

x ≥ 20

Answers

Answer:

A x ≤ 20

Step-by-step explanation:

Please help! This is due in two minutes :(

Is y=x^2 a function

Answers

Answer:

No

Step-by-step explanation:

y=x^2 is a sideways parabola and therefore not a function

Answer:

yeah

Step-by-step explanation:

Like based on existence theorem, for a rational number x there is a rational numner y, x^2=y

Use < >, or = to compare the following decimals.
(a) 0.91
0.98
D D>
(b) 9.07 [ 9.3
?.
(c) 0,90 [ 0.9

Answers

Answer:

0.32, 0.45, 0.76.

Step-by-step explanation:

so first you would use your < >,= signs and compare all of them until you have eliminated ALL but one (so 0.91<0.98 this is because 0.98 is close to 1 whole than 0.91) and you would continue this explanation for so on

Camille's kitchen has an area of 80 square feet. The kitchen is 8 times as many square feet as Camille's pantry. If the pantry is 2 feet wide, what is the length of the pantry? First find the area of the pantry. Solve on paper and check you answer on Zearn. The area of the pantry is square ft.

Answers

Answer:

Length of the pantry = 5 feet

Step-by-step explanation:

Camille's kitchen has an area of 80 square feet. The kitchen is 8 times as many square feet as Camille's pantry.

Step 1

Area of Camille's kitchen = 8(Area of Camille's pantry)

Area of Camilla kitchen = 80 square feet

80 square feet = 8(Area of Camille's pantry)

Area of Camille's pantry = 80 square feet/8

Therefore:

Area of Camille's pantry = 10 square feet

Step 2

If the pantry is 2 feet wide, what is the length of the pantry?

The shape of the pantry is rectangular hence:

The area of the pantry = Length × Width

Area of the pantry = 10 square feet

Width = 2 feet

Length = Area of the pantry/Width

Length = 10 square feet/2 feet

Length = 5 feet

Daniel rollerbladed 3 miles in 12 minutes. At this rate, how many miles will he rollerblade in 1 hour? Show your work.

Answers

Answer:

Daniel is rollerblading at 15 miles per hour

Daniel can go 3 miles in 12 minutes so we do 12÷3 to find out how many minutes it takes to go 1 mile which is 4 now we do 60÷4 to get 15

Alternatively we could do 60÷12 to get 5 then do 3×5 to get 15

Step-by-step explanation:

last month a class collected 240 cans for a canned-food drive. this month the class collected 320 can. what was the percent increase in the numbers of cans collected

Answers

25% I believe

Because 240 is 75% of 320
Hope this helps ^W^


Helpppp plsssssssss

Answers

Answer:

x intercept is (3,0)

y intercept is (0,-10)

HELP ME I BEG U a solution to the equation 4x-3y=12 must also be a solution to which of the following equation?
(1) 4x+3y= -12
(2) 12x-9y=36
(3) 2x-3y=6
(4) 8x-6y=12

Answers

Answer:

(2) is the correct answer

Step-by-step explanation:

if you multiply the given equation by 3 you get answer (2):

3(4x - 3y) = 3(12)

12x - 9y = 36

Answer:

(2) 12x-9y=36

Step-by-step explanation:

4x-3y=12  (×3)

12x-9y=36

What is the volume of the triangular prism
Hight 10in
Base 14 in
Length 6

Answers

Answer:

[tex]V=336\ in^3[/tex]

Step-by-step explanation:

Triangular Prism

Given a triangular prism of base area A and height H, its volume is obtained with the formula:

V = AH

The area of the base is calculated as follows:

[tex]A = \frac{WL}{2}[/tex]

Where W is the width and L is the length. Both dimensions must be perpendicular.

The triangle of the base has a hypotenuse equal to 10 in and the width is 6 in, the length is calculated by:

[tex]L=\sqrt{10^2-6^2}[/tex]

[tex]L=\sqrt{100-36}=\sqrt{64}[/tex]

L = 8 in

The area is:

[tex]A = \frac{6*8}{2}[/tex]

[tex]A = 24\ in^2[/tex]

Finally, the volume is:

[tex]V = 24\ in^2*14\ in[/tex]

[tex]\boxed{V=336\ in^3}[/tex]

The equation tan(55 degree) equals StartFraction 15 Over b EndFraction can be used to find the length of Line segment A C.

Answers

Given:

The equation is

[tex]\tan(55^\circ)=\dfrac{15}{b}[/tex]

To find:

The length of the line segment AC.

Solution:

We have,

[tex]\tan(55^\circ)=\dfrac{15}{b}[/tex]

[tex]1.428148=\dfrac{15}{b}[/tex]

Multiply both sides by b.

[tex]1.428148b=15[/tex]

Divide both sides by 1.428148.

[tex]b=\dfrac{15}{1.428148}[/tex]

[tex]b=10.50311[/tex]

[tex]b\approx 10.503[/tex]

In a triangle ABC, the line of line segment AC is b. So,

[tex]AC\approx 10.503[/tex]

Therefore, the length of the line segment AC is 10.503 units.

a) Find the lowest common multiple (LCM) of 36 and 48

Answers

144 is the lowest hoped this helped

Answer:

144

Step-by-step explanation:

I did the sum out :) :)

HELP ME! thank youu!

Answers

Answer:

y=51(Alternate interior angles)

z=40(Alternalte interior angles)

x=89(Sum of angles in a triangle)

Simplify the radical

Answers

Answer:

[tex] \sqrt{108} \sqrt{36 \times 3} \sqrt{36} \sqrt{3} \: \: 6 \sqrt{3} \: \: \: \sqrt{108} = 10.392304845413264[/tex]

please help i’ll give brainliest

Answers

Answer:

about 463 minutes or 7.7 hours

Step-by-step explanation:

area=length*width

4.75ft*3.25ft=15.4375ft^2

Now multiply 15.4375*30 to get 463.125 minutes

Determine the missing length of the right triangle below using the Pythagorean Theorem (a²+b²=c²). Round to the nearest whole number.

Answers

10.723...

But rounded up would be 11

Answer:

11

Step-by-step explanation:

[tex]c=\sqrt{a^{2} + b^{2} } \\14 = \sqrt{9^{2}+ b^{2} } \\14 = \sqrt{81 + b^{2} } \\14^{2} = 81+b^{2} \\196 = 81 + b^{2} \\81 + b^{2} = 196\\b^{2} = 196-81\\b^{2} = 115\\b = \sqrt{115} \\b = 10.72\\b = 11[/tex]

Suzanne is putting a fence around her rectangular garden. The length of the garden, x, is 4 feet more than the width. The perimeter of the garden is 32 feet. Write an equation to find the length of the garden.

Enter the correct answer in the box.

Answers

Answer:

Length=10 feet

Width=6 feet

Step-by-step explanation:

Let width (W) of the garden is x feet

Then Length=L=4+x feet

Perimeter=P=2(W + L)

P=2(x+x+4)

32=4x+8

4x=32-8

x=24/4=6 feet

W=6 feet

L=10 feet

Answer this question on the picture

Answers

Answer:

When one variable influences a change in another

Step-by-step explanation:

Causation means that one event causes another event to occur.

Find the sum of 5x2 - 3x + 2 and 3x2 - 4x - 1. Show all your work!!

Answers

Answer:

5 x ^2  −  3 x  +  2  =  3 x  −  4 x  −  1  =  − x  −  1

Can't explain, cause it will be more confusing.



Mrs. Torres is mailing a package that weighs 12.5 pounds. The post office charges by the
ounce to mail a package. How much does the package weigh in ounces?

Answers

Answer:200 ounces

Step-by-step explanation: multiply 12.5 by 16

a rectangle has a length 3 meters more than three times the width. the area of the rectangle is less than 90 meters squared. write an expression that represents all possible widths (use the variable x) of the rectangle. write your answer as an inequality, a < x < b.

Answers

Answer: -6<x<5

Step-by-step explanation:

Given

Length is 3 m more than three times the width

Suppose width is x

So, the length is 3x+3

The area of a rectangle is  [tex]length\times width[/tex]

Area= [tex](3x+3)x<90[/tex]

[tex]\Rightarrow 3x^2+3x-90<0\\\Rightarrow x^2+x-30<0\\\Rightarrow x^2+6x-5x-30<0\\\Rightarrow (x+6)(x-5)<0\\\Rightarrow -6<x<5[/tex]

Plz help meeeeeeeee You must make a constructive response and this is 8th Grade Math

Answers

Answer:

I'm in 10th grade so I'll see what I can do and will answer to the best of my ability.

Step-by-step explanation:

What Julie did wrong was, she did simplify she just did it wrong. She used 4*8 which does equal 32 but 8 can't be simplified anymore than that. If she would of used 2*16 then her answer would be right.

Hope this helps!

Answer:

[tex]5 \sqrt{18} - \sqrt{32} \\ = 5 \sqrt{9 \times 2} - \sqrt{4 \times 4 \times 2} \\ = 5 \times 3 \times \sqrt{2} - 2 \times 2 \times \sqrt{2} \\ = 15 \sqrt{2} - 4 \sqrt{2} \\ = \boxed{11 \sqrt{2} }[/tex]

11√2 is the right answer.

Algebra is a hard subject for me can I have help please

Answers

You have to put up a picture of your work or type in the problem of the assignment for us to answer for you.

Answer:

What he/she said

the amount of ppl who do this lol.

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