Simplify each algebraic expression.
2a +3(a +7)–(3a +3)

Answers

Answer 1

Answer:

2a+18

Step-by-step explanation:

[tex]2a +3(a +7)-(3a +3)\\\\Expand\: 3(a +7) :\\3a+21\\\\=2a+3a+21-\left(3a+3\right)\\\\-(3a+3)=-3a-3\\\\=2a+3a+21-3a-3\\\\Simplify\\\\=2a+18[/tex]


Related Questions

A battery factory typically produces 12,000 batteries per day and uses 50 boxes for packing the battiest. If the number of boxes needed for packing is proportional to the number of batteries produced, how many more boxes would be needed in a day when 18,000 battiest are produced

Answers

Answer:

Number of extra boxes= 120

Step-by-step explanation:

Giving the following information:

Batteries per box= 50

Number of batteries= 18,000

Number of batteries in ecxess= 6,000

We need to calculate the number of boxes required to cover the 6,000 extra batteries:

Number of extra boxes= number of batteries / batteries per box

Number of extra boxes= 6,000 / 50

Number of extra boxes= 120

Jayanti takes shortest route to her home by walking diagonally across a rectangular park. The park measures 60 meters ×80 meters. How much shorter is the root across the park than the route around its edges?

Pls help!!! It's due today in about 6 hours!!!!! I would also like a proper explanation instead of the answer itself!!!!

Answers

Answer:

The route across the park is 40 meter shorter than the route around its edges.

Step-by-step explanation:

We have to calculate the distance for both routes

As the route around the edges is straight,  we have to find the sum of length of both edges

Let [tex]R_E[/tex] be the distance of route around edges

[tex]R_E = 80+60 = 140\ meters[/tex]

Now we know that a diagonal divides a rectangle in two right angled triangles in which the diagonal is the hypotenuse.

We can use Pythagoras theorem to find the length of the diagonal

So,

[tex]H^2 = P^2 + B^2[/tex]

In the given scenario

P = 60

B = 80

Now

[tex]H^2 = (60)^2 + (80)^2\\H^2 = 3600+6400\\H^2 = 10000\\\sqrt{H^2} = \sqrt{10000}\\H = 100\ meters[/tex]

In order to calculate that how much shorter is the path across the park, we have to subtract the distance across park from the distance across edges.

[tex]= 140-100 = 40\ meters[/tex]

Hence,

The route across the park is 40 meter shorter than the route around its edges.

please help>>>>>>>>>>>>>>>>

Answers

Answer:

The answer is B, -5 is a rational number and integer! :)

Step-by-step explanation:

Answer: My guess is integer only

Step-by-step explanation:

The legs of the isosceles triangle each measure 14 inches. Calculate the length of the hypotenuse​

Answers

Answer:

14 radical 2

Step-by-step explanation:

For hypotenuses of isosceles triangle u just multiply by radical two

In function for every input there is exactly one output

Answers

Answer:

It should be true, because without an output or input it would be an alien device that doesn't need any energy to work, making it true, also i dont really know if its true

A parachute slows a skydiver from 85 m/s to 45 m/s in 4.5 seconds?

What is the acceleration of the parachute? A. 8.9 m/s2 B. -8.9 m/s2 C.0.1 m/s2 D. -0.1 m/s2​

Answers

Answer:

c - because if u divide u will get your answer sorry if im not makeing sense

A rectangles coordinates (RECT) are located on a coordinate plane. The coordinates for R, E, and C are: (0, 4), (5, 4), and (5,0). What is the area of the rectangle RECT?

Answers

T will be located at (0,0)

please help ........​

Answers

Answer:

x = 8

Step-by-step explanation:

Two tangent segments to a circle from the same external point are congruent, thus

WP = WQ , that is

3x - 6 = x + 10 ( subtract x from both sides )

2x - 6 = 10 ( add 6 to both sides )

2x = 16 ( divide both sides by 2 )

x = 8

HELP!!!!! Suppose the distance between two cities on a map is 5.2in the scale is 1 in =80miles what's the actual distance between the cities.

A) 408 miles
B) 400 miles
C) 424 miles
D) 416 miles

Answers

Answer:

80*5.2= 416

D: 416 miles

if Olivia works 4 hours more each week than her coworker lily, if Olivia works 32 hours in 2 weeks how many hours does lily works

Answers

Lily works 12 hours a week and 24 hours in two weeks

PLEASEEEE HELPPPP 10th GRADE GEOMETRY!!!

Answers

1 = 30 degrees
2 = 30 degrees
l3 = 120 degrees
4 = 60 degrees
5= 60 degrees
6 = 60 degrees
7 = 30 degrees
8 = 120 degrees
9 = 30 degrees

Mrs.Walker would like to give each of her 32 students no less than three stickers. How many stickers must she have

Answers

Answer:

Mrs. Walker will need at least 96 stickers in order to give each of her students at least 3 stickers each.

Step-by-step explanation:

32*3=96.

96 is the minimum

Which value is not equivalent 0.37 0.370 37/100

Answers

0.370 is not equivalent
0.370 is equivalent to 370/1000 which is different than 37/100

Last year there were m members in a photography club. This year the number of
members has increased by 10%. The expression m + 0.1m represents the number of
members in the club this year. What is this expression written in simplest form?

Answers

Answer:

m + 10/100(m)

Step-by-step explanation:

Last year there were m members in a photography club.This year the number of members has increased by 10%m + 0.1m represents the number of members in the club this year.

So m represents the number of members in the club last year.

A 10% increase of the members = [tex]\frac{10}{100} * m[/tex] = 0.1m

Hence the number of members in the club this year = m + 0.1m

PLEASE HELP WILL MARK BRAINLIEST!!!!

Answers

No the line will be vertical on point one

6d + 7 = 61 what does d equal?

Answers

Answer:

i would reword this to 6x+7=61

Step-by-step explanation:

So.  

move the 7 to the right side of the equation but as an opposite number so in this case its gonna be a negative

61-7=54

then you divide the number and get your missing numbers

54/6=9

d=9

plug it in

6(9)+7=61

D is equivalent to 9

61 minus 7 is 54 what is 54 divided by 6?? 9 so the answer is 9

Please help!!

Write the sum, and then write an equivalent expression by collecting like terms and removing parentheses

b. 2x - 7 and the opposite of 2x

Answers

Answer :

Sum = 2x-7 + (-2x) and equivalent expression = -7

Step-by-step explanation:

First number is (2x-7) and other number is opposite of 2x i.e. (-2x).

We need to write the sum of 2x - 7 and the opposite of 2x

Opposite of 2x is (-2x)

Sum means to add the number :

2x-7 + (-2x)

Removing parentheses,

2x-7 - 2x

Taking like terms together,

2x-2x-7= 0-7

= -7

Hence, the answer is -7.

A line has a slope of 6 and a y-intercept of 5. What is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:

The equation in slope-intercept form is y = 6x + 5

Step-by-step explanation:

The slope-intercept form of the linear equation is y = m x + b, where

m is the slopeb is the y-intercept

Let us solve the question

∵ A line has a slope of 6

∵ m is the slope of the line

m = 6

∵ The line has a y-intercept of 5

∵ b is the y-intercept

b = 5

→ Substitute the values of m and b in the slope-intercept form

∵ y = m x + b

∴ y = 6x + 5

The equation in slope-intercept form is y = 6x + 5

Which sentence represents the following inequality?
9(x+3) < 6x – 12
A. Nine times the sum of a number and three is less
than six times the same number decreased by
twelve.
B. The product of nine and a number increased by
three is less than the product of six and the same
number decreased by twelve.
C. Nine multiplied by the sum of a number and
three is greater than the product of six and the

Answers

Answer:

A is correct

Step-by-step explanation:

Given

9(x+3) < 6x – 12

Answer choices:

A. Nine times the sum of a number and three is less  than six times the same number decreased by  twelve.

9(x + 3) < 6x - 12Correct

B. The product of nine and a number increased by three is less than the product of six and the same  number decreased by twelve.

9x + 3 < 6x - 12 Wrong

C. Nine multiplied by the sum of a number and three is greater than the product of six and the ...

9(x + 3) > 6x ...The last choice is incomplete but is wrong anyway by saying "greater"

What is the equation of a line with slope 4 and passes through point (4,2)?

Answers

Answer:

y = 4x - 14

Step-by-step explanation:

Use point-slope form and substitute the values.

y - 2 = 4(x - 4)

y - 2 = 4x - 16

y = 4x - 14

Like segment PLEASE HELP MEEEEEE

Answers

Answer:

I think it is 8

Step-by-step explanation:

Im sorry if it is wrong :(

I think it’s 7 I did with my class so I think it’s 7

Evaluate the function:

f(x)=4x−2, find f(8)

Answers

Answer:

f (8) = 30

Step-by-step explanation:

[tex]f(x)=4x-2\\\\f(8)=4(8)-2\\\\f(8)=32-2\\\\\boxed{f(8)=30}[/tex]

Hope this helps.

i need help fast with this problem

Answers

Answer:

6 is the answer

Step-by-step explanation:

I need help I don’t get the question

Answers

They are equal to each other
9x - 7 = 7x - 3
2x = 4, x = 2
Solution: x = 2

Answer:

2

Step-by-step explanation:

9x-7 = 7x-3

9x-7x = 2x

2x -7 = -3

   +7   +7

2x=4

x=2

Simplify. 4(w-5)-6w please help ASAP

Answers

Answer:

-2w-20

Step-by-step explanation:

distribute => 4w-20-6w = -2w-20

Answer:

-2w - 20

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Terms/Coefficients/Degrees

Step-by-step explanation:

Step 1: Define

4(w - 5) - 6w

Step 2: Simplify

Distribute 4:                    4w - 20 - 6wCombine like terms:       -2w - 20

During the summer, the height of the water in a pond decreases by 2 inches per day due to evaporation. What is the change in the height of the water after 12 days?

Answers

Answer:

24 inches

Step-by-step explanation:

2 x 12 = 24


An orange cone has an
exact volume of 1207T ft3.
What is the height of the
cone if the radius is 6 ft?

Answers

Answer:

32.01 ft

Step-by-step explanation:

Step one:

given data

Volume of 1207T ft3.

the radius is 6 ft

Step two:

The volume of a cone is given as

[tex]V=1/3 \pi r^2h[/tex]

substitute

1207= 1/3*3.142*6^2*h

1207= 37.704h

divide both sides by 37.704

1207/37.704= h

h= 32.01 ft

What is 37 / 492 show your work

Answers


The answer is this!! (Look in picture)

PLEASE HURRY!!!!!!!
I PROMISE TO VOTE BRAINLIEST!!!!!!

Answers

it’s the last one. hjsksios
it is the last one ^^^^

what type of triangle, if any, can be formed with sides measuring 8 inches, 8 inches, and 3 inches?

Answers

we can form an Isosceles triangle using the given measures. Step-by-step explanation: We are given the measure of three sides of a triangle.
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