Mathematics High School

what statement makes the open sentence 12 + 3x = 30 true?MUTIPLE CHOICE QUESTION WILL MARK BRAINLIEST
(x=2), (x=4), (x=5), (x=6)

Answers

Answer 1

Answer:

x= 6

Step-by-step explanation:

12+3x=30

3x+12=30

3x+12-12=30-12

3x=30-12

3x=18

3x divided by 3 = 18 divided by 3

x=18 over 3

18 divided by 3 is 6

x=6

Answer 2

Answer:

x = 6

Step-by-step explanation:

12 +3x = 30

Subtract 12 from both sides

3x = 30 - 12

3x = 18

Divide both side by 3

x = 18/3

x = 6

Related Questions

a
Choose the
equation of the
graphed
function.
С.
e.
6
a. y = |x- 3
–
b. y = |x - 31
y = |x] + 7
d. y = (x – 71
|
y = |x| +3
C.
y = (x + 3]
g y = |x|– 6
h. y = (x + 61
1.
y = |x| + 6
j. y = (x - 11

Answers

the answer is j.
y = |x - 1|

Can anyone help me with this question please ? I’ll mark as brainliest

Answers

Answer: A

Step-by-step explanation:

If you plug in the numbers from the x column into the equation in the place of x, you can figure out the answer.

Example:    -10x - 15

                   -10(1) - 15 = -25

                   -10(2) - 15 = -35 and so on...

You're Welcome! :)

Hilda adds 5 to a number, then multiplies the sum by -2. The result is 6. What is the number?

Answers

Answer:

-8

Step-by-step explanation:

I think that it’s -8 but I don’t know

-13+12p - 4 = 6(2p-1)​

Answers

Answer:

[tex]-13+12p-4=6\left(2p-1\right)[/tex]

[tex]-13-4=-17[/tex]

[tex]12p-17=6\left(2p-1\right)[/tex]

[tex]12p-17=12p-6[/tex]

[tex]12p-17+17=12p-6+17[/tex]

[tex]12p=12p+11[/tex]

[tex]12p-12p=12p+11-12p[/tex]

[tex]0=11[/tex]

There is No Solution

Hello! I have a project where I invite 5 people to a “dinner party” to school. I want to invite a girl named Jaci Butler. Jaci Butler is her own agent in the singing industry. I found her address and want to send her a mail inviting her to the party. The party is at school. Does this count as stalking? If you were Jaci butler, what would you think I’m a stalker? If you were her, would you come?
REMEMBER: IM NOT INVITING HER TO MY HOUSE. IM INVITING HER TO MY SCHOOL

Answers

It's s tu pid if you really consider the question. No one hosts a 'dinner party' at school.. & that too with just 5 people. Utter ma dness, but if you really do invite an A-list celeb then she won't come unless there are audiences (in a huge number), other celebs, reporters etc. Plus you'll also need prior appointment. If you have all these then it's not sta lki ng..but that's not what happens in a dinner party & it's gonna cost a lot of money too. Now, this Jaci Butler you talk of is a singer-songwriter & you tuber..might not be a really big celeb (like Taylor Swift or Arianna Grande) or something but still calling her late at night to a school with 5 people sounds we ird & while it's not considered as s ta lking to me ...no person in their right mind would actually do it. St alking is like when you follow a person around making the other person uncomfortable with your presence. You hardly did that in this case...but calling Jaci to a dinner party at school is still c re epy. So, if I were Jaci I sure wouldn't come.

Peace ✌ ☮

________

Please don't mind the spaces in some words, I had to do it as Brainly wouldn't let me enter it otherwise. Hope it helps!

_______

RainbowSalt2222 ☔

did americans work less than 40 hours a week on average in 1984? in 1984, the gss included questions about the number of hours that the respondent worked per week. the average number of hours worked per week was 36.63 hours with a standard deviation of 13.23 hours. a sample of 34 respondents was questioned. find the test statistic.

Answers

Answer:

878 gas

Step-by-step explanation:

89=5=7=9

A test statistic is a statistic that is used to test statistical hypotheses. The test statistic of the given hypothesis is; C: -0.25

What is the test statistic?

A test statistic is a statistic that is used to test statistical hypotheses. A test statistic is a numerical summary of a data set that lowers the data to a single number that can be used to perform the hypothesis test.

As it is given to us that the sample mean(x') is 36.63 hours, while the standard deviation(σ) is 13.23.

Now, we want to know whether Americans work less than 40 hours or not. therefore, let's first define the hypothesis;

Alternative Hypothesis; μ < 40

Null Hypothesis; H₀: μ ≥ 40

Further, the Formula for test statistics is given,

[tex]z = \dfrac{(x'-\mu)}{\sigma}\\\\z = \dfrac{(36.63- 40)}{13.23}\\\\z = -0.25[/tex]

Hence, the test statistic of the given hypothesis is; C: -0.25.

Learn more about Test Statistics:

https://brainly.com/question/15980493

HELPS PLEASE! 40 POINTS FOR CORRECT ANSWER!

Answers

Answer:

Expression as a power of the number a is given as

a^-2

Make x the subject of the formula 6x+a=5

Answers

you would -a to get 6x=5-a then divide by 6 which you would get your final answer which is x=5-a/6

pls answer BRAINIEST
what is the range of the function graphed below

Answers

Answer:

B

Step-by-step explanation:

The range is how it extends horizontally. The line goes to 2 and then goes down infinitely. So it should be B, going from 2 to -inf.

Jonathan is buying 1-gallon of cans of paint to paint a room. The information on the paint can says that a gallon of paint can cover 400 square feet. The room's walls are 688 square feet combined. How many 1-gallon cans of paint does he need to buy to put 2 coast of paint on the walls?

Answers

Ok so one gallon is 400 and you want to cover 688 x 2
688 x 2 is 1376. Now you divide 1376 by 400.
You now know that to paint the walls with two coats of paint will cost you four cans of paint.

I PROMISE ILL GIVE BRAINLIEST IF U ANSWER THIS CORRECTLY!!
PLEASE I REALLY NEED THE RIGHT ANSWER!
TYSM

Answers

Answer:

Approximately, C or A

Step-by-step explanation:

The answer is C since it has to be longer since it was broken at that time

Find the slope of a line through points (-7,-4) and (0,9)
PLEASE SHOW WORK

Answers

Answer:

-7/13

Step-by-step explanation:

-7 - 0 = -7

-4 - 9 = -13

Slope is - 7/13

Negative seven thirteenths

If the puppy's weight is still 20%, what is the percentage represented
by Jada's friends dog?

Answers

Answer: 20 poorxcent moere than what it was

Step-by-step explanation:

20% more, give me the brainliest

Find the volume of this prism 5cm 6cm 8 cm 12cm 15cm

Answers

Answer: 840 cm^3

Step-by-step explanation: I hope it helps you!

Tia mixes mashed pumpkin with several other ingredients to make homemade treats for her dog. She uses 3/4 cup of pumpkin to make 1 1/4 pounds of treats. How many mashed pumpkin does Tia use to make 1 pound of treats?

Answers

Step-by-step explanation:

Use a comparison method!!

3/4 : 1 1/4 = x : 1

3/4 : 5/4 = x : 1

3/4 × 1 = x × 5/4

3/4 = 5x/4

x = 3/4 ÷ 5/4

x = 3/4 × 4/5

x = 3/5

Tia used 3/5 cup of pumpkin to make 1 pound of treats

Help pls how to solve this problem​

Answers

It. 2,00ml one l so yes I can help

Rob made a scale drawing of a summer camp. He used the scale 17 centimeters : 6 meters.
The actual length of the sand volleyball court is 18 meters. How long is the volleyball court in
the drawing?

Answers

Answer:

the volleyball court would be 51 centimeters

Answer:

51 centimeters.

Step-by-step explanation:

My bad if I got it wrong but I'm pretty sure thats the answer

A cell phone provider offers a new phone for $600 with a $70 monthly plan, making the function for the average cost per month of the phone C(x)= 600+70x/x, where x is the number of months we’ll use the phone service. How many months would you need to use the phone in order for the average cost to be less than $80?

Answers

Answer:

it is 525 per month i did cross multiply divide

Step-by-step explanation:

Simplify:
5 square root 7 x 7 square root 7

Answers

Answer:

35 square root of 49

Step-by-step explanation:


Both 5 and 7 are prime numbers so they cannot be factored.

√5×√7=√5√7=√35



Hope this helps ;)

This graph represents a quadratic function. What is the value of a in this functions equation?
A. -1
B. 2
C. -2
D. 1

Answers

Answer:

B .2 is the answer B.2가 답이다

Kurt swims 575 yd at each swim practice. If he practices Monday Wednesday and Friday about how many yards will he swim that week

Answers

Answer:

1725 in that week

Step-by-step explanation:

So he pratices 3 times a week 575 yards each time.

All we have to do is multiply!

575 × 3 = 1725

Have a great day! :D

A line passes through the points (–2, –8) and (–4, –8). Which shows the graph of this line?

Answers

Answer:

The fourth one (horizontal and lined up with y=-8)

Step-by-step explanation:

PLEASE HELP IM SWAMPED

Answers

the first is  and answer and so is the 2

Help pleaseeee ? Aghhhh ):

Answers

Answer:

Step-by-step explanation:

The best I can do is set up the problem :3

9x(x+2) +6(x+2)

It said something Like there was inappropriate stuff in my answer so heres a picture darling :3

sorry I couldn’t explain fully but hope this helps :3

Please help me please with number 1 part a and b.

Answers

Answer:

a) 39^2 = x^2 + 15^2

39^2 - 15^2 = x^2

root (39^2 - 15^2) = x

x times 2 is your answer.

b) (120 x 68) / 2 = 4080

can someone help me please :/

Answers

Answer:

9.

Step-by-step explanation:


What is this shusuwjdbxinsjzbxjsb

Answers

Answer to 7 is alternate interior

Hello! I have a project where I invite 5 people to a “dinner party” to school. I want to invite a girl named Jaci Butler. Jaci Butler is her own agent in the singing industry. I found her address and want to send her a mail inviting her to the party. The party is at school. Does this count as stalking? If you were Jaci butler, what would you think I’m a stalker? If you were her, would you come?
REMEMBER: IM NOT INVITING HER TO MY HOUSE. IM INVITING HER TO MY SCHOOL

Answers

Answer:

no not at all it's just being helpful and kind and I would come

i need help on this question lol

Answers

Answer:

m=8

Step-by-step explanation:

summing up the angles and equating it to 90

Given a sample mean of 130 and a sample standard deviation of 20, a point estimate of the unknown population mean would equal:

Answers

Answer:

1300

Step-by-step explanation:

130×10 thats the answer yoo

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