7a - 8 - 12a + 4 (please give steps)

Answers

Answer 1

Answer:

The answer will be -5a-4

Step-by-step explanation:

Subtract 7a-12a=-5a

Add -8+4=-4

which makes the answer -5a-4

Hope this helps:)

Answer 2

Answer:

a = -4/5

Step-by-step explanation:

7a - 8 - 12a + 4

First, you want to put like terms together. You can rearrange the terms because of the Commutative Property.

7a - 12a - 8 + 4

I will put parentheses around the negative numbers, so it is easier to see the negative numbers.

7a (- 12a)( - 8) + 4

Now you combine the Like Terms

7a-12a     and     -8+4

- 5a - 4

Now you need to get the term with a all by itself on the other side of the equals sign. You can do this by adding the term over to the other side.

-5a - 4

+5a       +5a

Now you have

- 4 = 5a

To get the final answer you need to get a all by itself. You can do this by dividing 5 on both sides.

-4/5=5a/5

So you get

-4/5 = a

as your final answer.


Related Questions

A painter charges a flat fee and then an additional hourly fee for his work. The table below shows the amount of money the painter ears and the number of hours he works. Create an equation to match the table
of value

1. y - 50x + 25 2. y=100x + 25
3. y=30x + 65
4. y=1502 - 25

Answers

Answer:

1.  y = 50x + 25

Step-by-step explanation:

See attached image.

60% of what number is 15?​

Answers

Here you go.
Answer 25

Which property of soil depends on the size of particles?
color
odor
temperature
texture

Answers

The property of soils which depends on the size of particles is Texture.

Properties of Soil

The properties of Soil include colour, odor, temperature, and texture as measured by porosity, mouldability and a host of other texture effects.

It is evident that the texture of soil is dependent on the size of the particles as it affects how packed the particles of the soil is.

Read more on properties of soil;

https://brainly.com/question/26462165

Answer:

the right one is texture

Step-by-step explanation:

i got it right on the test

help me with parallel and prependicular please

Answers

parallel option a

its parallel to each other

y=3x-7

complete the missing value in the solution to the equation
(1,?)

Answers

I think it’s 5. I might be wrong

The length of a rectangular dance floor
is 4.325 meters. The width of the floor is
3.6 meters. What is the area, in square
meters; of the dance floor?

Answers

Answer:

15.57 square meters

Step-by-step explanation:

to figure out are you do L X W or length X width wich in this case is 4.325 X 3. 6

In a camp ,there is enough flour for 300 persons for 42 days.How long will the flour last if 20 more persons join the camp

Answers

Answer/Step-by-step explanation:

Direct proportion: If a variable increases then other variable also increases with a constant factor  i.e.  y = kx

Inverse proportion:  if a variable increases then other variable decreases with a  constant factor  i.e   xy = k

Assume that food will last for d days if 20 more persons join the camp.

Understand the fact that for given food number of days food last is inversely proportional to the number of persons hence product of days food lasts and number of persons is constant,

Days x number of persons = constant

Equate the product of 300 persons and 42 days  with (300 + 20) person and d days to solve for d.

[tex](300+20) *d=300*42[/tex]

⇒ [tex]d = \frac{12600}{320}[/tex]

⇒ [tex]d =\frac{1260}{32}[/tex]

⇒ [tex]d=\frac{315}{8}[/tex]

⇒ [tex]d=39.375[/tex] [tex]days[/tex] [tex]or[/tex] [tex]39(\frac{3}{8} )days[/tex] [tex]in[/tex] [tex]fraction[/tex]

Hence, if 20 more people Join (320 people ) it will last 39.375 days in decimal or 39 3/8 days in fraction

[RevyBreeze]

Solve the math problem

Answers

Answer: Here ya go (answers below)

Step-by-step explanation:

5,400 becomes 5.4 x [tex]10^{3}[/tex]

0.0024 becomes 2.4 x [tex]10^{-3}[/tex]

342.5 becomes 3.425 x [tex]10^{2}[/tex]

0.000004 becomes 4 x [tex]10^{-6}[/tex]

463,000,000 becomes 4.63 x [tex]10^{8}[/tex]

12.5 x [tex]10^{3}[/tex] becomes 1.25 x [tex]10^{4}[/tex]

What is 2 to the 5th power multiplied by 2 to the negative 3rd power??​

Answers

Answer:

4

Step-by-step explanation:

[tex]2^5 \times 2^{-3}[/tex]

Because the powers have the same base of 2, we can apply the index law:

[tex]a^b \times a^c=a^{b+c}[/tex]

Therefore, [tex]2^5 \times 2^{-3}=2^{5-3}=2^2=4[/tex]

17 is what percent of 68?​

Answers

Answer:

25%

17 is what percent of 68?

Its 25%

17/68*100

= (17*100)/68

= 1700/68 = 25

Answer:

25%

Step-by-step explanation:

Question : 17 is what percent of 68?​

Answer :

To solve this let the unknown percentage be x .

Let us solve now.

68 × x% = 17

68 × [tex]\frac{x}{100}[/tex] = 17

And now let us find the percentage by making x as the subject.

[tex]x=\frac{17*100}{68}[/tex]

[tex]x = \frac{1700}{68}[/tex]

[tex]x =25[/tex]

Therefore, the percentage is 25%

Hope this helps you :-)

Let me know if you have any other questions :-)

Not understanding what I underlined in the pic please help explain it’s number 16

Answers

in the equation that u underlined u just take common in it

like

-x+xy

-x(1-y)

hope it helps you

have a great day bud. ;)

The product of the polynomial is x² - x + xy + 16y - 2y² - 30

Polynomial

Polynomial is an expression that involves only the operations of addition, subtraction, multiplication of variables.

Polynomials are classified based on degree as linear, quadratic, cubic and so on.

Given the polynomial:

(x + 2y - 6)(x - y + 5) = x² + 2xy - 6x - xy - 2y² + 6y + 5x + 10y - 30

= x² - x + xy + 16y - 2y² - 30  

The product of the polynomial is x² - x + xy + 16y - 2y² - 30

Find out more on Polynomial at: https://brainly.com/question/2833285

You and your friend leave your houses at the same time to meet at a restaurant. The distance (in miles) your friend
is from the restaurant is given by y = -40% + 200, where I is the number of hours since your friend left home.
You live 100 miles from the restaurant and arrive at the same time as your friend. Write a linear equation that
represents your distance from the restaurant

Answers

Answer:

When x=0 the friend is 200 miles from the restaurant and at x=5 the friend reaches the restaurant. When x=0 you are 100 miles from the restaurant, so 100 is the y intercept, and when x=5 you reach the restaurant so 5 is the x intercept. We have y=mx+100 and y=0 when x=5, so 0=5m+100 therefore m=-20 and the equation is y=-20x+100.

i've tried everything for b??

Answers

Answer:

5/8

Step-by-step explanation:

There are 8 square in the box and 5 are filled in, so it is 5/8.

Identify the lengths of two blank sides

Answers

Answer:

14 inches

Step-by-step explanation:

First identify the length of two corresponding sides.


Write the matching lengths as a Fraction or a Colon ratio.


then you would simplify the ratio if possible.

You can use the formula a = to find the batting average a of a batter who has h hits in n times at bat. in If a person has a batting average of 280 and has been at bat 300 times, how many hits does the batter have?​

Answers

Answer:

Step-by-step explanation:

BA = Number of hits / Times at bat

BA = 280 / 300

BA = 0.933

No one past or present, has ever had that kind of batting average.

Ty Cobb has a lifetime average of 0.366

Ted Williams was the last play to average 0.406 in a season. (Over 400). He did it in 1941.

50 POINTS HELP ME NOW!!!
A fruit snacks box is in the shape of a rectangular prism.

top of the box is 7cm side of the box is 4 cm bottom of the box is 2cm

Part A:
What is the volume of the box? Show ALL your work! (5 points)



Part B:
What is the amount of cardboard used to make the fruit snacks box? Show ALL your work! (5 points)

Answers

Answer:

Step-by-step explanation:

Answer:

The volume of the box is 56 cm ^3

The surface area or the amount of cardboard used is 100 cm ^3

Step-by-step explanation:

for the volume you multiply the top the side and the bottom of the box together 7*4*2=56 ^3

For the amount of cardboard used we have to find the area of all the sides then add them together. 7*4=28 28*2=56. we multiply it by 2 because there is 2 sides with the same measurements for each side.

2*4=8 8*2=16

2*7=14 14*2=28

56+28+16=100

Hope this helps!

A point on a pre-image is currently located at (1, -3). The pre-image is translated 3 units right and 6 units up. What are the NEW coordinates for the point after the translation? Use graph paper to sketch the translation if needed. Question 3 options:

A. (3, 4)
B. (4, 3)
C. (7, 0)
D. (-2, 2)

Answers

Answer:

4,3

Step-by-step explanation: I took the test trust

Do 42 and 43 pleasee

Answers

Answer:

42. A

43. C

Step-by-step explanation:

42. The answer is A. This is because we are distributing (multiplying) the 7.2 to each number in the parentheses.

43. If Hal ran 4.5 laps, then he ran...

0.65 mil (since each lap is 0.65 miles)* 4.5 (laps) = C. 2.925 miles.

Answer:

42. A, distributive property  tells us how to solve expressions in the form of a(b + c).

43. 0.65 miles x 4.5 laps = 2.925, C

Mr c wheel shop has bicycles and go karts to rent. Each bicycle has only one seat and each go kart has only one seat. Each bicycle had 2 wheels and each go kart has 4 wheels there are a total of 21 seats and 54 wheels. How many go karts and how many bicycles are at the shop

Answers

Answer:

2

Step-by-step explanation:

trust me its is the answer

Convert 4.06 to a percent. please help, i need this for school and i have to get an 80 on this assignment.

Answers

Answer:

406 percent

Please brainliest me i am begging you for god sake

need help please this is due very soon

Answers

So focus. On that stop playing on your phone

1. "Ten subtracted from the quotient of a number and
7 is less than -6."

Answers

Answer:

N/7 - 10 < -6

N/7 < 4

N < 28

Step-by-step explanation: hope it helps

Answer:

16

Step-by-step explanation:

first you gotta subtract until you get 7 then subtract again until you get -6

what is 7(8x+5x+8)−7x in it simplist form

Answers

Answer:

84x+56

Step-by-step explanation:

Hope this helps!

also for the future, so you don't have to waste your points, use math w ay it will solve ur problems :)

The diameter of a circle field is 40m and that of another 96m . find the diameter of the circular field whose area is equal to the sum of the area of two fields ​

Answers

Answer :

According to the Question

Diameter of a circle field is 40m and that of another 96m .

We have to find the diameter of the circle whose area is equal to the sum of the area of given two circular fields.

Radius of field whose diameter is 40 m

→ r = 40/2 = 20m

Radius of field whose diameter is 96 m

→ r' = 96/2 = 48m

Now, calculating the diameter of Larger circular field.

Let the radius of larger field be R m .

Now, according to the given statement

Sum of Area of given two circular fields = Area of larger field

➠ πr² + πr'² = πR²

➠ π ( r² + r'²) = π R²

➠ 20² + 48² = R²

➠ 400 + 2304 = R²

➠ 2704 = R²

➠ √2704 = R

➠ 52 = R

Therefore, Diameter = 2 × R = 2×52 = 104 m

So, the diameter of Larger circular field is 104 m .

Answer:

Diameter of the circular field=40 m[tex]r = \displaystyle{ \frac{40 \: m}{2}} [/tex][tex]r=20 m[/tex]Diameter of another circular field=[tex]96 m[/tex]r=[tex]\displaystyle{\frac{96 m}{2}}[/tex]r=48 m

Area of circular field(2)=[tex]πr^2[/tex]

=[tex]π×(20)^2[/tex]

=[tex]400π[/tex]

Area of circular field(2)=[tex]πr^2[/tex]

=[tex]π×(48)^2[/tex]

=[tex]2304π[/tex]

The sum of the area of the two fields=[tex]400π+2304π[/tex]=[tex]2704π[/tex]

Let the radius of circular field that is formed so be r meter(m).

Now,

[tex] \cancel\pi {r}^{2} = 2704 \cancel\pi[/tex]

[tex] {r}^{2} = 2704[/tex]

[tex]r = \sqrt{2704} [/tex]

[tex]r = 52 \: m[/tex]

Area of the circular field whose area is equal to the areas of two fields,

Diameter=[tex]2r[/tex]

Diameter=[tex]2×52[/tex]

Diameter=[tex]104 m[/tex]

The diameter of the circular field whose area is equal to the areas of two fields is 104 m.

Step-by-step explanation:

[tex] \frak{ \blue{DisneyPrincess29}}[/tex]

please help me with this

Answers

Answer:

  match the boxes to the parts of the equations shown below

Step-by-step explanation:

Left

  [tex]\text{slope}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{50-34}{5-3}=\dfrac{16}{2}=8[/tex]

__

Right

  [tex]\text{slope}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{2-31}{30-1}=\dfrac{-29}{29}=-1[/tex]

What is the equation for the following graph?

Answers

Ans

y=0x+1

Step-by-step explanation:

Raheel is comparing the cost of two parking garages. Garage A charges a flat fee of $6 per car plus $0.50 per hour. Garage B charges a flat fee of $2 per car plus $1 per hour.

Answers

Answer:

$6 + .50x = $2 + $1.00x

4 = .50x

8hr = x, the number of hours when both garages cost the same amount

$6 + .50 x 8 =

$10 would be the cost a both garages after 8 hours

Step-by-step explanation:

#A

Flat fee=6Rate of change=0.5

Equation in slope intercept form

y=mx+by=0.5x+6

#B

Flat fee=2$Rate of change=1

Equation in slope intercept form

y=x+2

Now for compare take any no

Let's take 10

For garage A

y=0.5(10)+6=5+6=11$

For garage B

y=10+2=12$

Hence Garage B is charging more

An employee at a state park has 54 photos of animals found at the park. She wants to arrange the photos
in rows so that every row except the bottom row has the same number of photos. She also wants there to
be at least 5 rows.
Complete the description of two different ways she can arrange the photos.
photos or arrange the
She can arrange the photos as rows of 10 photos and 1 row of
photos as rows of 8 photos and 1 row of photos.

help, don’t ask me 2 use the calculator, mine doesn’t work ‍♀️‍♀️

Answers

Answer:

2.5

Step-by-step explanation:

10/4=2.5

Answer:

6,4,7,6

Step-by-step explanation:

Convert. Simplify your answer and write it as a proper fraction or as a whole or mixed number.
_____ cups = 5 1/2 pints.

Answers

There are 11 cups in 5 1/2 pints. There are .5 pints in 1 cup, 11 cups would be 5 1/2 pints.

THREE ANSWERS, THANK YOU!!

Answers

Well let's see how many equations we can make;

Main equation:-

[tex] \dashrightarrow \tt 15 + {?} = 36[/tex]

Delivered equations:

[tex] \dashrightarrow \tt 15 = 36 - {?}[/tex]

[tex] \dashrightarrow \tt { ?= 36 - 15}[/tex]

These are 3 equations

hope it helps

Answer:

15+?=36, ?+36=15, and ?=36-15

Step-by-step explanation: Hope it helps

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