Solve for z
2z − 4 = 4
Please also explain how to do it!

Answers

Answer 1

2z−4=4

Step 1: Add 4 to both sides.

2z−4+4=4+4

2z=8

Step 2: Divide both sides by 2.

2z

2

=

8

2

z=4

Answer:

z=4

Answer 2

Answer: z=4

Step-by-step explanation:

Move all terms not containing z to the right side of the equation.

2z=4+4

Add 4 and 4.

2z=8

Divide each term by 2 and simplify.

z=4


Related Questions

Find the mean absolute deviation of each data set. What do you notice about the means of the two data sets? About the mean absolute deviations of the two data sets?

Data Set 1: 47, 46, 51, 54, 57
Data Set 2: 15, 25, 51, 77, 87

The mean absolute deviation of data Set 1 is????

Answers

the mean of the data set is 51

Marina deposits $1,500 in a savings account at Bank of America. The bank will pay her 5% interest at the end of the year. How much additional money from interest will Marina receive?

Answers

Answer:

75 of additional money

Step-by-step explanation:

5% of 1,500 is 75

and 1,500 plus 75 is 1575

What is the solution to 2x-8 <12?
x<2
x<3
x<10
x<40

Answers

Answer:

x<10

Step-by-step explanation:

2x-8<12

add 8 to 12 and cancel to get the equation, 2x<20

divide 20 by 2

x<10

Hope this helps :)

The answer would be X<10

[tex]\sqrt{16}[/tex]

Answers

Answer:

4

Step-by-step explanation:

desmos calculator

but i knew it off the top of my head  

Please help if you can. If possible please type how you got the answer so I can remember it next time I have a question like this.

Answers

Answer: the image doesnt show

Step-by-step explanation:

Deposition does NOT occur

A. as a glacier melts.

B . as rocks move downhill due to gravity.

C . when a river empties into the ocean.

D . as calcite dissolves from limestone.

PLZ HELP WILL MARK BRAINLIEST

Answers

Answer:

D

Step-by-step explanation:

Not A because it has rocks in it

Not B because thats clear

Not C same reason for B

Yes D because it dissolves

I think it’s A. But not sure

- 5 - 2 (a - b) + 2 (a - b) -3 (a - b) + 3
Simplify this to the simplest form by combining like terms

Answers

Answer:

-3a + 3b + -2

Please help me. Ive needed help on this for a long time

Answers

the answer is c i believe

Miranda is keeping track of how fast her dog is growing. Her dog was 20 inches long at birth and grew 10 inches during the first year.

Which graph shows these two pieces of information?

Answers

Answer: The one in the down right corner

Step-by-step explanation:

Hope this helps :)

it might be the 4th one

i need help plzzzzzzzzz

Answers

Answer:

-8 + 10 = 2

Addictive inverse of 8 is -8

it equals 2. and the additive inverse of 8 is -8

Which set(s) of side lengths could not be used to construct a triangle?

Answers

Answer:

1,2,3 and 3,5,9

Step-by-step explanation:

In otder to be a triangle, the 2 smaller sides have to add up to be more than the longer side

1,2,3 and 3,59 the 1st one and the 3rd answer

For breakfast, Tyrell can choose from scrambled eggs or an omelette, bacon or sausage and orange juice or milk. How many different outcomes are possible

Answers

Answer:

Step-by-step explanation:

Sort the statements and formulas into two categories.


O A.) C = πd


O B.) A = π²


O C.) Distance around a circle.


O D.) C = 2πr


O E.) Measured in square units


O F.) (radius) ( 1/2 circumference)



Circumference of a circle | Area of a circle

-------------------------------------|------------------------






Please actually answer this question. I will give Brainliest.

Answers

B I know for a fact.

Answer:

circumference of a circle: c= πd, distance around a circle, c=2πr

Area of a circle: A= πr^2, (radius) (1/2 circumference), measured in square units

Step-by-step explanation:

The sum of 1/2 and 2/3 is ______________

Opintoins:
Less than
Greater than
Equal to

Answers

Step-by-step explanation:

greater than less than or equal to what

1/2 is less than 2/3

How will the graph change if the car fee is changed to $10?
A. The y-intercept will shift up.
B. The y-intercept will shift down.
C. The slope of the line will increase.
D. The slope of the line will decrease.

Answers

Either A or C i can’t see the graph
maybe a I can’t see the frost

Answer me, giving out 15 points

Answers

Answer:

the answer is a

Step-by-step explanation:

the answer is a because of the way the arrow is going and its an open cirlce

Find the solution to the following system using substitution or elimination:
y = -4x + 9
y = 3x - 5
O (1, -2)
O (14, 37)
O (2, 1)
O (1, 5)

Answers

Answer:

a

Step-by-step explanation:

Answer:

(2,1)

Step-by-step explanation:

y = -4x + 9  -------------->eq1

y = 3x - 5  --------------->eq2

consider eq 1 and put in eq2

-4x+9=3x-5

add -9 on both sides

-4x=3x-14

add -3x on both sides

-4x-3x=-14

-7x=-14

x=2

put in eq1

y=-4(2)+9

y=1

S.S=(2,1)

a package of 6 pairs of insulated socks cost 34.74. What is the unit price of the pairs of socks?

Answers

Answer:

5.79

Just have to divided 34.74 by 6 I believe.

The answer is 5.79 34.74 divided by 6

I know I already asked this but I need an explanation on whyyy

The question is: There are 28 girls and 22 boys on a swim team what percent of the team is made up of boys? explain why pls.

Answers

Answer:

U first need to find out the total number of people

22+28

50

and since they are asking only for boys we need to put the number of boys on the numerator and the total number of people at the denominator

22/50

And now to make it into % we need to ALWAYS multiply the fraction by 100

22/50 x 100

44%

Hope it helps

Answer:

44 %

Step-by-step explanation:

okay so 100% is equal to the whole team or 50 swimmers

100% = 50 swimmers

to find out how much one swimmer is would be to divide the 100% by the total of swimmers.

100% / 50 swimmers

2% = 1 swimmer

so now that we know how much percent 1 swimmer is we will multiply 2% by 22, the number of boy swimmers.

2 x 22 = 44

Below are the scatter plot and residual plot for a set of data.

A linear model
(is/is not)

the best fit for the data because the residual plot
(shows no pattern/shows a pattern)

and is
(scattered/not scattered)​

Answers

Answer:

A linear model (is/is not) the best fit for the data because the residual plot (shows no pattern/shows a pattern) and is (scattered/not scattered).

Step-by-step explanation:

A linear model should be used when you want to view the data as a continuous response. This means that when the data is increasing/describing then the line should be in a uniform pattern.

If you were to look at the residual plot, you can see that the points curve in a pattern, meaning that the point is not scattered which is not good criteria for a residual plot.

Mentioned before, the points on the residual plot are in a pattern, so it’s not scattered as well.  

Please fill in the blanks for the question ;-;
The words/numbers usable is in the word bank

Answers

Answer:

8, 2, 3, 8(2+3), 6, 7, 6(6+7), 9, 4, 5, 9(4+5)

Step-by-step explanation:

put them in the blanks IN THAT ORDER.

Mr. Levin tried to simplify this expression. He made a mistake! Explain where the mistake is in this problem. Give the correct simplified expression too!
(8x + 8) - (7x - 2)
8x + 8 - 7x - 2
x + 6

Answers

Answer:

Instead of x+6, it should be x+10

Step-by-step explanation:

Answer:

His mistake is putting x+6.

Step-by-step explanation:

You can't add x to 6 because they are not the same.

The right answer is X=6.

plz help me I need this for classwork

Answers

Answer:

The difference in them is that some are negative and some arent negative, you can tell this because some of them have the negative sign in front while others do not

A. 14 - 9 = 5

B. -14 + 9 = -5

C. 3 + 2 = 5

D. -3 + -2 = -5

helppppppppppppppppppppp​

Answers

Answer:

it should be 2.28

Step-by-step explanation:

srry if wrong

I got 2.28 as the answer

Find the area of the composite figure:

Answers

Answer:

The area is 21.

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

5 x 3 = 15

3 x 2 = 21

pls i need help asap with this plss

Answers

Answer:

A.Length = 12cm

B.Perimeter = 100.97cm

Answer:

a. L = 12cm

b. P = 100.9cm

Rule: y=\dfrac{1}{4}x+1y=
4
1

x+1y, equals, start fraction, 1, divided by, 4, end fraction, x, plus, 1
xxx yyy
444
888
121212

Answers

Answer:

first is 0

second is 12/4

third is 1.75

Step-by-step explanation:

1/4-1/4=0

13/4-1/4=12/4

2-1/4=1.75

hope this helps-

please mark me brainliest B)

got this on khan academy 6th grade math

please help me with this for brainliest

Answers

Answer:

Its asking you the opposite of -8 which is positive 8

Step-by-step explanation:

Then you multiply it by five and get the opposite of -40, positive 40

Its asking you the opposite of -8 which is positive 8

Step-by-step explanation:

Then you multiply it by five and get the opposite of -40, positive 40

What is -1/15 + (-3/5) in simplest form. Don't explain.

Answers

Answer:

-10/15 ..................................

HELP!!!GIVING OUT BRAINLIEST

Answers

Answer:

3?

Step-by-step explanation:

Just a basic thinking, but since theres 2 people and the probability is unknown , 1/2 1+2=3

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