Mathematics High School

if 3x - 6 = 15 than what is x​

Answers

Answer 1

Answer:

3x-6=15

3x=15+6

3x=21

x=21/3

x=7

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Answer 2

Answer:

x = 7

Step-by-step explanation:

Step 1: Add 6 to both sides.

[tex]3x - 6 + 6 = 15 + 6[/tex] [tex]3x = 21[/tex]

Step 2: Divide both sides by 3.

[tex]\frac{3x}{3} = \frac{21}{3}[/tex] [tex]x = 7[/tex]

Step 3: Plug in the value to see if it's correct.

[tex]3(7) - 6 = 15[/tex] [tex]21 - 6 = 15[/tex] [tex]15 = 15[/tex]

Therefore, x = 7.

Related Questions


Help plz.. it’s due tonight

Answers

The answer is y=5.3 because when you subtract 2.8 from 8.1 you get 5.3

6. A linear function f(x) contains the coordinates (-9, 4) and (6,4). Joy says f(x) is a horizontal
line, and Lu says f(x) is a vertical line. Which student correctly described the function?
Explain.

Answers

Answer: Horizontal Line

Step-by-step explanation:

Joy is correct. This is a horizontal line. It has the same y coordinates so it will be a horizontal line.

Joy is saying correct by saying it is a horizontal line.

What is coordinates?

Coordinates are a set of values which helps to show the exact position of a point in the coordinate plane.

Given:

coordinates (-9, 4) and (6,4)

If we plot these point on the graph it will have the y- coordinates same for both coordinates.

Also, if the graph have same y- coordinates then the line joining these points are horizontal in nature.

Hence, Joy is saying correct by saying it is a horizontal line.

Learn more about coordinates here:

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Pls answer ASAP timed assignment

Answers

Answer:

C) Point B is a reflection of point A along the Y-Axis

Step-by-step explanation:

I plotted it on a graph, and it turned out to be an exact mirror reflection.

Hope This Helped!

A computer selects a number
X
X
from 4 to 11 randomly and uniformly. Round all answers to 4 decimal places where possible.
What is the distribution of
X
X
?
X
X
~ U(,)
Suppose that the computer randomly picks 35 such numbers. What is the distribution of
¯
x
x
¯
for this selection of numbers.
¯
x
x
¯
~ N(,)
What is the probability that the average of 35 numbers will be less than 7.9?

Answers

Answer:

22.5

Step-by-step explanation:

The required Distribution, selection and probability is X to U(4,11), x to N (7.5, 0.3415) and 0.87932 respectively.  

(a) Distribution of X is uniform distribution  X to U(4,11).


(b) Sample size (n) = 35, distribution of mean would be moderate with value = (4+11)/2 = 7.5

Standard deviation = √ [(11-4)^2/(12*35] = 0.3415
Now
x to N (7.5, 0.3415)

(c) We have to find probability that the average of 35 numbers will be less than 7.9.

P(x < 7.9) = P(x < 7.9; 7.5; 0.3415)
Z = (7.9 -7.5)/0.3415
Z = 1.1713
P(x< 7.9)= P(Z < 1.1713)= 0.87932.

Thus, The required Distribution, selection and probability is X to U(4,11), x to N (7.5, 0.3415) and 0.87932 respectively.  

Learn more about probability here:

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The rectangle has an area….

Answers

Answer:

5.5193237 times 10 to the power of -10

Step-by-step explanation:

To solve you just need to divided the area by the length or width the question has provided.  Please note I am in 7th grade.  

Which rational number has the least value?

Answers

A rational number a/b is said to be in the lowest form or simplest form if a and b have no common factor other than 1. In other words, a rational number ab is said to be in the simplest form, if the HCF of a and b is 1, i.e., a and b are relatively prime.

12,000,055 + 60 + 16 + 90 x 40

Answers

Answer:

12003731

(12,000,055 + 60 + 16 + 90 x 40=12003731)

(7k -3 ) (k^2 - 2k + 7 )


Please help

Answers

7k^3-3k^2+35k+21

multiply them by using a box

Victoria logged in to work at 8:15 am and logged out at 4:25 pm.

How many hours did she work? (Her employer rounds to the nearest quarter hour.)
7 1/2 hours

7 3/4 hours

8 hours

8 1/4 hours

Answers

8 1/4 hours long i think

In total Victoria worked for [tex]8 \frac{1}{4}[/tex] hours. Therefore, option D is the correct answer.

Given that, Victoria logged in to work at 8:15 am and logged out at 4:25 pm.

What is clock?

A clock or a timepiece is a device used to measure and indicate time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month and the year.

Victoria logged in to work at 8:15 am

8:15 am →9:15 am →10:15 am→11:15 am→12:15 pm→1:15 pm→2:15 pm→3:15 pm→4:15 pm

8:15 am →9:15 am = 1 hour

9:15 am →10:15 am = 1 hour

10:15 am→11:15 am = 1 hour

11:15 am→12:15 pm = 1 hour

12:15 pm→1:15 pm = 1 hour

1:15 pm→2:15 pm = 1 hour

2:15 pm→3:15 pm = 1 hour

3:15 pm→4:15 pm = 1 hour

So, in total Victoria logged in for 8 hours 10 mins

Its nearest quarter is [tex]8 \frac{1}{4}[/tex] hours

In total Victoria worked for [tex]8 \frac{1}{4}[/tex] hours. Therefore, option D is the correct answer.

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Find the value of x
A. 180
B. 60
C. 14
D. 35

Answers

Answer:

A

Step-by-step explanation:

THIS IS MY ANSWER MARK ME

X would be “C. 14”.

By the vertical angle theorem, the 60 and the 5x - 10 are congruent and equal. Put them equal to each other and solve for x. You end up with X = 14

solve each inequality -43 >-8 +7x

Answers

Answer:

28 / 4 = -7.28 / 4 = -7.

Step-by-step explanation:

Your answer would be x < -5

How does the exponential function f(x) = 2 · 3^x + 4 appear as a graph?
PLEASE PLEASE HELP IM LITERALLY CRYING EVERYONE IS DELETING COMMENTS NEED ASAP

Answers

I believe this is how that exponential function would look as a graph (if you need a better pic let me know)

In laissez-faire economics, what is the role of the government in the economy?

Answers

Answer:

In a laissez-faire economy, the only role of the government is to prevent any coercion against individuals.

Step-by-step explanation:

HOPE IT HELP

hey i need help with question 3 i put 81.5% but i’ve been told it’s been wrong ?

Answers

68% because it’s between them

jay decided to go parachuting. Her elevation drops by -80 feet in 8 seconds. How far is she dropping each second​

Answers

Your answer is 10feet a second

Which is an equation of the line containing (1, –3) and (7, 15)?

y = 3x – 10


y = 3x


y = 3x – 6


y = –3x + 8

Answers

Answer:

y = 3x - 6

Step-by-step explanation:

(1, -3) (7, 15)

Step 1. Find the slope

Slope = 3

Step 2. Create the equation of the slope then use a point and plug it in as terms of x and y with a y-intercept at the end

y = 3x + b

(15) = 3(7) + b

15 = 21 + b

15 - 21 = b

b = -6

Thus, the equation of the line is y = 3x - 6

In a triple batch of a spice mix, there are 6 teaspoons of garlic powder and 15 teaspoons of salt. If the are 14 teaspoons of spice mix, how much sat is in it?

Answers

do 6x14x15 and then you should get 398

en el supermecado hay promociones de 2 refrescos a $3. cuantos me cuesta llevar el de los 37 chicos de mi clase y el mío

Answers

Answer:57

Step-by-step explanation:

A company spent 20% of its annual budget developing a new machine. What fraction of the company’s budget was spent developing the new machine?
A. 1/20
B. 5/15
C. 1/5
D. 3/19

Answers

Answer:

c

Step-by-step explanation:

20/100 can be simplified to 2/10, which can be simplified further to 1/5

what is the midpoint of (5,-3) and (-1,-7) .

Answers

Your answer would be (2,-5)

If x=2, y=5, z=3, find the value of:

Answers

Answer:

value of? please include whole question

Please help i dont know the answer ( 4׳ - 3ײ -49× - 12) ÷ (× + 3

Answers

Answer: 4x^2 - 15x - 4

Step-by-step explanation:

use synthetic division. an image is attached on how

The truth value of the statement ""1+ 1 = 2 if and only if 2 + 3 = 4"" is *

Answers

Answer:

False

Step-by-step explanation:

1+1=2 is clearly true.

2+3=4 is clearly false.

x if and only if y has a value of true if x and y are both true or both false. It is false otherwise.

So, true if and only if false has a value of false, so the answer is [tex]\boxed{false}[/tex]

Which one in a natural number
5/7
4.1
1.18
-6

Answers

Answer:

4.1 I think

Step-by-step explanation:


What is the 6th term in the sequence below?
4,-8, 16, -32,

Answers

Answer:

−128

Step-by-step explanation:

Assuming the pattern continues...

Answer:

[tex]128[/tex]

Step-by-step explanation:

We see that this is a geometric series with common ratio [tex]-2[/tex].

So, the 6th term is the 4th term times [tex](-2)^2=2^2=4[/tex].

So, the answer is [tex]4(-32)=\boxed{128}[/tex] and we're done!

Note:

The closed form for this geometric series is [tex]4*(-2)^{n-1}[/tex], which means the nth term is always [tex]4*(-2)^{n-1}[/tex].

Can someone explain to me
How 4x+3y=15 ? How did we get the 15?

Answers

4x/4=15/4+3y/4 Divide each term
Cancel the common factor of 4
Divide by 1

Please find attached photograph for the solution to your question

What is the midpoint of a line with endpoints (6,5) and (14,7), (Your answer
should be an ordered pair)

Answers

Answer:

Midpoint = (10,6)

Step-by-step explanation:

Using Coordinates: X(6,5) and Y(14,7)

Using the midpoint formula: M = (X1 +Y1)/2, (X2 + Y2)/2

Midpoint of XY = (6 + 14) / 2, (5 + 7) / 2

Midpoint of XY = (20) / 2, (12) / 2

Therefore the midpoint of XY is (10,6)

0


pls help!!
--------------

Answers

First Blank is CD

Second Blank is BC

Third Blank is ABC

Step-by-step explanation:

first blank = CD

second blank = BC

third blank = ∆ABC.

hope this helps you.

Which of these expressions is equivalent to log ( 15 x 24 )

Answers

Answer:

15*24=360

Step-by-step explanation:

Answer:On A.p.E.X its Log (15) + Log (24)

Step-by-step explanation:

A rectangular prism has a length of 14in, a height of 18in, and a width of 17in. What is
its volume, in cubic in?

Answers

Answer:

4284in

Step-by-step explanation:

Because 14*18*17 is 4284

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