Mathematics High School

Simplify each expression by using the distributive property and combining like terms.
3 ● (2x - 4) - 4x

Answers

Answer 1

Answer:

2x - 12

Step-by-step explanation:

Answer 2

Hello!

So, let's simplify using the distributive property.

Let's look at 3(2x - 4). You want to multiply 3 by every term inside the parentheses.

3*2x = 6x

3*-4= - 12

So now our expression looks like this:

(6x - 12) - 4x

Now we combine like terms. Our only like terms are 6x and -4x.

6x - 4x = 2x. So, our simplified expression is:

2x - 12.

Related Questions

there are 153 people in line for a ride at an amusement park the ride can take 40 people at a time how many times will the ride need to run so that every person in the lines gets a turn?

Answers

Answer:

Step-by-step explanation:

we need to divide

153/40=3.825

the ride needs to run 4 times

Find the quotient:
2x² – 9x - 5
x-5
10)
Type answer here

Answers

Answer: 2x+1

Step-by-step explanation:

a. If a polygon is a square, then it is a rectangle.
CONVERSE:
Tor F?
b. If a polygon is a rectangle, then it has four 90°
angles.
CONVERSE:
Tor F?
c. If a shape is a rectangle, the formula for its area is
base times height.
CONVERSE:
Tor F?

Answers

Answer:

a. If a polygon is a rectangle, then it is a square

False

b. If a polygon has four 90 degree angles, then it is a rectangle

True

c. If the formula for a shape's area is base time height, it is a rectangle

False

Solve the system by substitution.
y = 5x
y = 9x + 4

Answers

Answer:

(-1, -5)

Step-by-step explanation:

[tex]\left \{ {{y=5x} \atop {y=9x+4}} \right.[/tex]

1. We must calculate x, for that we must substitute y, so we have:

5x=9x+4

2. Now we solve the equation.

5x-9x=4

-4x=4

x=-1

3. Now we must calculate y

y=5x

y=5(-1)

y=-5

And the answer is (-1, -5)

PLEASE HELP!!!!!!!!!!

Answers

Answer:

y+1 1/4=3 3/4 or y.1 1/4=3 3/4

Step-by-step explanation:

A local bookstore has 30 copies of a bestseller when it opens on Monday morning. On Monday, it sells 6 copies of the book. On Tuesday, it sells 3 copies. On Wednesday, it receives a shipment containing 24 copies of the books and also sells 8 copies. How many books does the store have at the end of Wednesday?

Answers

so it starts with 30

monday: 30-6   24 copies left

tuesday: 24-3     21 copies left

wenesday: 21+ 24   45-8   37 copies

its has 37 copies left

Nancy started the year with $425 in the bank and is saving $25 each week. Sam started the year with $705 but is spending S15 a week. Write a system of equations that model the following situation.
Define cach variables with a "Let" statement, write two equations, and solve completely.

Answers

Answer:

Step-by-step explanation:

Let x equal number of weeks and y equal money in the bank.

Nancy, y=425+25x

Sam, y=705-15x

The system of equations:

Nancy:   [tex]y=\$425+\$25x[/tex]

Sam :   [tex]y=\$705-\$15x[/tex]

Given:

Amount in Nancy's bank = $425

Amount saved by Nancy each week = $25

Amount in Sam's bank = $705

Amount spend by Sam each week = $15

To find:

The system of equations describing the given models.

Solution

1) Amount in Nancy's bank = $425

Amount saved by Nancy each week = $25

Let the number of weeks Nancy saving her money be 'x'.

Let the total amount of money in Nancy's bank after x weeks be 'y'.

[tex]y=\$425+\$25\times x\\y=\$425+\$25x[/tex]

The equation for Nancy:

[tex]y=\$425+\$25x[/tex]

2)

Amount in Sam's bank = $705

Amount spend by Sam each week = $15

Let the number of weeks Sam spending his money be 'x'

Let the total amount of money left in Sam's bank after x weeks ='y'

[tex]y=\$705-\$15\times x\\y=\$705-\$15x[/tex]

The equation for Sam:

[tex]y=\$705-\$15x[/tex]

Learn more about system of equations here:

brainly.com/question/9351049?referrer=searchResults

brainly.com/question/90105?referrer=searchResults

please help due soon plzz

Answers

Answer:

x = 5

Step-by-step explanation:

3x = -5x + 40

8x = 40

x = 5

hope this helps!

Answer:

5,15

Step-by-step explanation:

Which answer describes the sequence {1,3,7,15,…} as a mathematical statement?

Answers

Answer:

so just successive powers of 2

Step-by-step explanation:

1, 3, 7, 15, 31, 63, _? Add successive powers of 2 to the number: 1+2=3; 3+4=7; 7+8=15; 15+16=31; 31+32=63; 63+64=127.

The given sequence {1,3,7,15,…} has general term S = A(n-1) + (A(n-1) + 1) where A0 = 1.

Given that,

To justify the given sequences 1,3,7,15.


What is arithmetic progression?

Arithmetic progression is the series of numbers that have common differences between adjacent values

What is geometric progression?

Geometric progression is a sequence of series whose ratio with adjacent values remains the same.

Here,
Given a sequence, 1,3,7,15
where first term      A0 = 1
         second term  A1 = 1 + 2 = 3
          third term      A2 = 3 + 4 = 7
From above sequence we can conclude the general term for the sequence as, S = A(n-1) + (A(n-1) + 1)

Thus, the given sequence {1,3,7,15,…} has general term S = A(n-1) + (A(n-1) + 1) where A0 = 1.

Learn more about arithmetic progression here:
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what is the the 70th term of the arithmetic sequence 26, -19, -12,

Answers

Answer:

464 is da answer

Step-by-step explanation:

26-7(70)=? 490-26

Find the slope and y-intercept from the following graph of a linear equation.

Answers

Answer:

The slope is 4x and the y intercept is 3

Hope this helps. :)

Answer:

a

Step-by-step explanation:

mark me brainiest

and look up slope calculator and use omni calculator

Ahab wants to buy a mule that is 5 % off. The original price is $ 178. What is amount of discount


Answers

Answer:

the discount is $8.90

Step-by-step explanation:

178 • .05 = $8.90 off of the original price

I Will give brainllest! Look at picture answers. please show all your work and explain how you get it.

Answers

Answer:

-1/10

I'm sure this answer is right.

Use the formula M= rise/run.

Then you will get this answer.

3x+3y=9 solve for y
Can the answer be written as y=-x+3 my teacher told me I can write it like that can I though ? Or is the answer y=-x 3 ?

Answers

The answer is written as y=-x+3 just like your teacher said!
The answer is NOT y=-x 3

Solve this system of equations
y=7x+5
y=x+17

Answers

Answer:

(x, y) = (2, 19)

Step-by-step explanation:

7x + 5=x + 17

x=2

y=7*2+5

y=19

Please give brainlyist

Answer: (2, 19)

Step-by-step explanation:

There are three general ways to solve a system of equations:

- Substitution

- Elimination

- Augmented Matric

Since both given equations all have y isolated, substituting the value of y will be the most appropriate way here.

--------------------------------------------------------------------------------------------------------

Given

y=7x+5

y=x+17

Substitute y into the equations

7x+5=x+17

Subtract 17 on both sides

7x+5-17=x+17-17

7x-12=x

Subtract 7x on both sides

7x-12-7x=x-7x

-12=-6x

Divide -6 on both sides

-12/-6=-6x/-6

x=2

Substitute  value into one of the equations

y=x+17

y=2+17

y=19

(2, 19)

Hope this helps!!

Please let me know if you have any questions

plz help fast solve this

Answers

Answer:

3

1

2

Step-by-step explanation:

Math simplification

Answer:

A=3, B=1, C=2

Step-by-step explanation:

Answer correctly
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0+0

Answers

Answer:

=0

Step-by-step explanation:

0+0=0

it can't be 2 zeroes, just 0

Answer:

0+0=0

Step-by-step explanation:

my albert einstein maths =0+0=15

What fraction is greter than 3 - 5

Answers

Answer:

4/5 is greater

Step-by-step explanation:

What is the name of this solid figure?

Answers

Answer:

the picture isn't whole, but what I see is a cylinder.

Step-by-step explanation:

PLEASE HELP ME!!!! I will give you 45 points Because that’s all I have!!!

Identify the variable and the constant in the expression below:
24 +f
Variable is:
Constant is:

Answers

Answer:

24F...........,.....

6th grade work please help

Answers

Answer:

Same

Step-by-step explanation:

it's that the question interesting anaways

Answer: same

you have to name the transformation i guess

Step-by-step explanation:

Every point moves the same distance in the same direction on a coordinate plane.

Translation mean Reflection, Rotation, and Dilation

(06.02)
The graph shows the number of hours driving and the distance from home:
Road Trip
350
300
250
200
Distance from Home
150
100
50
0
10 1
2.
3 4 5 6
Hours Driving
Which statement best describes the relationship between the number of hours driving
a
As the hours driving increases, the distance from home decreases
Ob
As the hours driving increases, the distance from home increases.
As the hours driving decreases, the distance from home increases
No relationship can be determined.

Answers

Answer:

The answer is B.)

Step-by-step explanation:

Step-by- step explanation:

Answer:

The answer is B because it is the one that makes the most sense.

Step-by-step explanation:

Juan bought 4.5 lbs of coffee for $7.98 per lb. Sales tax is 6%. What was the total amount Juan paid for the coffee?

Answers

Answer:

the amount he paid is 36.06

Step-by-step explanation:

hope this helps

Answer:

$33.7554

Step-by-step explanation:

4.5 x 7.98

35.91- the amount without the sales reduction

6% of 35.91

6/100 x 35.91

2.1546- the amount that was deducted

to find out how much he paid we will subtract the deducted amount from the original price which is

35.91-2.1546

$33.7554 is the amount he paid

In 8 hours if Martha writes 2 essays, how many essays can she write in 15 hours?

Answers

Answer:

Martha can write 3.75 essays in 15 hours. (Which is a lot for me)

Step-by-step explanation:

First, I divide 2 by 8.

2 ÷ 8 = 0.25

Next I multiply 0.25 by 15.

0.25 * 15 = 3.75

So, the answer is 3.75

Hope this helps! :)

Step-by-step explanation:

in 8 hours she wrote = 2 essay

in 1 hour she wrote = 2/8 = 1/4

in 15 she wrote = 15 × 1/4 = 15/4 or 3.75 essays .

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you.

Help with this and I will give you the brainiest and you get 10 points

Answers

Answer:

1.-22

2.2

3.48

4.3b

5.1+5v

6.2m+20

7.p=-9

8.x=8

which table of values can be defined by the function y =6x - 2?

Answers


i need help with this question too! :(

Answer:

the answer is A

Step-by-step explanation:

is x equals 12 a solution to the equation 6 + x = 19​

Answers

Answer:

13

19 minus 6 is equal to 13 so your answer would be thirteen

Hi! So my class is starting Trinomials and I don’t understand it. We have to fill out this chart and I don’t know how. Can someone please help or explain it to make it easier. PLEASE HELP

Answers

Answer: To factor a trinomial in the form x2 + bx + c, find two integers, r and s, whose product is c and whose sum is b. Rewrite the trinomial as x2 + rx + sx + c and then use grouping and the distributive property to factor the polynomial. The resulting factors will be (x + r) and (x + s).

Step-by-step explanation:

You would find two numbers that when added would be the sum and when multiples it would equal teh given product. For example, q) is -4 and -5 since when added they equal -9 and when you multiple they become 20.

Which is equivalent to 644 ?
6442
O 244
O 4
O 16
O 164/4

Answers

Answer:

I belive it would be A

Step-by-step explanation:

The equivalent of 64/4 is 16

How to determine the equivalent?

The expression is given as:

64/4

Evaluate the quotient of 64 and 4 i.e. divide 64 by 4

64/4 = 16

Hence, the equivalent of 64/4 is 16

Read more about equivalent expressions at:

https://brainly.com/question/2972832

I will give you brainlist if you answer this correctly

Answers

Answer:

its 2,340

Step-by-step explanation:

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