Solve for x: x — 10 = 3х – 12

Answers

Answer 1

Answer:

x=1

Step-by-step explanation:

Step 1: Subtract 3x from both sides.

x−10−3x=3x−12−3x

−2x−10=−12

Step 2: Add 10 to both sides.

−2x−10+10=−12+10

−2x=−2

Step 3: Divide both sides by -2.

−2x/−2 = −2/−2

x = 1


Related Questions

Find the distance, slope, and midpoint of the segment with endpoints A(5,4) and B(-1, 12)​

Answers

Answer:

Step-by-step explanation:

Mark drives a distance of 124 miles in 3 hours. He drove 4512 miles during the first hour. He drove equal distances in each of the remaining 2 hours to complete his journey. What is the distance covered in the last hour?

Answers

Answer:

[tex]x = 39\frac{1}{4}[/tex]

Step-by-step explanation:

Given

[tex]Total\ Distance = 124\ miles[/tex]

[tex]First\ hour = 45\frac{1}{2}[/tex]

Required

Determine the distance covered in the last hour

Since the distance in the last 2 hours are the same. Represent the distance in each of the remaining hours as x.

So:

[tex]First\ Hour + Second\ Hour + Third\ Hour = Total[/tex]

[tex]45\frac{1}{2} + x + x = 124[/tex]

[tex]45\frac{1}{2} + 2x = 124[/tex]

Collect Like Terms

[tex]2x = 124 - 45\frac{1}{2}[/tex]

[tex]2x = 124 - \frac{91}{2}[/tex]

Take LCK

[tex]2x = \frac{248-91}{2}[/tex]

[tex]2x = \frac{157}{2}[/tex]

Divide both sides by 2

[tex]x = \frac{157}{2} * \frac{1}{2}[/tex]

[tex]x = \frac{157}{4}[/tex]

[tex]x = 39\frac{1}{4}[/tex]

Hence, the distance in the third lap is: [tex]x = 39\frac{1}{4}[/tex]

20.) If w = 3, which inequality is true?
2w + 2 >9
O-3W-1 <-12
5 - 4w <-6
O -12-5w > -27
HELP PLSSSS

Answers

Answer:

W=-1

Step-by-step explanation:

will give brainlest and 5 stars and thanks

Answers

Answer: 6m²

Step-by-step explanation:

Area of triangle: 1/2 × b × h

b = 3     h = 4

1/2 × 3 × 4 = 1/2 × 12 = 6

A kite is flying 100 m high from the ground level. If it starts descending 10 m/min, how much time will the kite take to touch ground level?​

Answers

Answer:

10 minutes

Step-by-step explanation:

100 meters/10 meters per min. Cancel out the meters, and you're left with 10 minutes.

1 person can cut a large area of grass in 5 hours. How long would it take 2 people to cut the grass

Answers

Answer:

Well going with the answer mathematically, it would take 2.5 hours for 2 people to cut the grass.

it would take 2.5 hours for 2 people

.
What is the equation in standard form of the line that passes through the point (4, −8) and has a slope of 1/4?

A) x − 4y = 36
B) x − 4y = −28
C) x − 4y = −36
D) x − 4y = 28

Answers

Answer:

Option A is correct.

Step-by-step explanation:

Given

The point (4, -8)Slope m = 1/4

To determine

What is the equation in the standard form of the line that passes through the point (4, −8) and has a slope of 1/4.

Using the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where

m is the slope of the line(x₁, y₁) is the point

substituting the values m = 1/4 and the point (4, -8)

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-\left(-8\right)=\frac{1}{4}\left(x-4\right)[/tex]

[tex]y+8=\frac{1}{4}\left(x-4\right)[/tex]

Subtract 8 from both sides

[tex]y+8-8=\frac{1}{4}\left(x-4\right)-8[/tex]

[tex]y=\frac{1}{4}x-1-8[/tex]

[tex]y=\frac{1}{4}x-9[/tex]

Writing the equation in the standard form

As we know that the equation in the standard form is

Ax+By=C

where x and y are variables and A, B and C are constants

so

[tex]y=\frac{1}{4}x-9[/tex]

[tex]x=4y+36[/tex]

[tex]x - 4y = 36[/tex]

Therefore, the equation in the standard form of the line that passes through the point (4, −8) and has a slope of 1/4 will be:

[tex]x - 4y = 36[/tex]

Hence, option A is correct.

parallel lines l and m are intersected by transversal t as shown below which of the following angles are alternate interior angles

a. 1 and 5
b. 4 and 6
c. 2 and 7
d. 3 and 6

Answers

Answer:

c 2and7

Step-by-step explanation:

1 to 2 to 3 to 4 the789

The answers C) 2 and 7

A package of textbooks weighed 80 ounces, how many pounds did the textbooks weigh?

Answers

It weights 5 pounds. Hope that helps and please give brainliest!

2 3/4 divided by 5 1/2

Answers

Answer:  0.5

Step-by-step explanation:

Answer:

.5

Step-by-step explanation:

2.75/5.5=.5

2. What function types can be multiplied together to build a
new function of degree 5? How many total zeros will the
function have? How many can be imaginary?

Answers

Answer:

To get a function of degree 5, either functions of degree 1 and 4 or functions of degree 2 and 3 should be multiplied.

This function will have a total of 5 zeros, same as its degree.

The function of degree 5 will have at least one and up to five real zeros

The rest of the zero's are imaginary.

So if has 2 real zeros, then the remaining 3 will be imaginary.

Maximum number of imaginary zero's is 4.

Please give me the correct answer ​

Answers

Answer:

YES

Step-by-step explanation:

Area of the largest square = Sum of area of the smaller squares

13² = 12² + 5²

169 = 144 + 25

169 = 169

TRUE

This proves the Pythagoras theorem in a right angle triangle.

(Hypotenuse)² = (leg 1)² + (leg 2)²

Therefore, answer is YES.

How do I solve this I've been on this question for 3 weeks!!

Answers

Answer:

c=3√5

Step-by-step explanation:

it appears the vertices of the inscribed quadrilateral,cuts the edges of the square at certain points that form right angles,with C being the hypotenuse.

c=√3²+6²

c=√9+36

c=√45=3√5

Hilda adds 5 to a number, then multiplies the sum by negative 2. The result is 6. Write and solve an equation to find the number, x.
What is the number?

Answers

Answer:

I think answer is 3.

Step-by-step explanation:

2+3=52*3=6

Answer:

I think it will be like that:

(X+5)×-2=6

-2x-10=6

-2X=16

X=-8

So what y’all know about this???

Answers

Answer:

1.052

Step-by-step explanation:

Add 1 to the percent increase.

1 + 5.2% = 1 + 5.2/100 = 1 + 0.052 = 1.052

Answer: 1.052

3 lines are shown. A line with points P, R, N intersects a line with points O, R, M at point R. A line extends from point R to point L in between angle M R P. Marcus states that angle ORP and angle LRP are a linear pair. Which best describes his statement?

Answers

Answer:

Marcus is wrong.

Step-by-step explanation:

As we see from the figure the angles ORP and PRM makes 180 degrees or are supplementary angles.

Marcus is wrong because a linear pair has a sum equal to 180 degrees.

But if we observe carefully the angles ORP and LRP don not together make an angle of 180 degrees. Also these angles do not have opposite rays .

Therefore angles PRM and ORP are linear pair angles but angle ORP and angle LRP are not a linear pair.

These angles do not have opposite arms as uncommon sides .

The linear pair must have

1) 180 degrees

2) opposite rays as uncommon sides

3) common vertex

Answer:

He is incorrect. Ray RO and ray RL are not opposite rays.

Step-by-step explanation:

Marcus is incorrect. In order for angles to be a linear pair, the rays of the angles that don't have a common side point, need to be opposite. This is not true for rays RO and RL, so Marcus's statement is not true.

Factor the expression using the GCF.

26x - 13

Answers

Answer:

13 ( 2 x − 1 )

Step-by-step explanation:

Factor  13  out of  26 x − 13

Answer:

13 ( 2x-1 ) hope this helps !!!!

Step-by-step explanation:

Combine like terms: 4f + 3e - 2f - e​

Answers

2f + 2e

that’s the answer

Answer:

2f + 2e

Step-by-step explanation:

4f -2f = 2f

3e - 1e = 2e

2f + 2e

function represented by the table? What is the rate of change for the 1 2 -2 0 -1 -8 у 12 -3 2 7 A. 5 B. 1 C. i nin D. -5​

Answers

Answer:A:0

Step-by-step explanation:hope this helps :)

the cost per month of making n number of wooden toys is 3n + 30. the income from selling n toys is 6n. how many toys must the company make to make a profit

Answers

Answer:

3×6=18+30=48. so company needs to make 48 toys

Answer:

n > 10, or n = 11. Not sure which answer fits your hw better.

Step-by-step explanation:

6n > 3n + 30

6n-3n > 30

(3n > 30)/3

n > 10

So, you need to sell 10 toys in order to break even, which means you need to make and sell 11 toys at least to make a profit.

Check time!

6(11) > 3(11) +30

66 > 63

can you guys help me​

Answers

Answer:

The answer is 76.

Step-by-step explanation:

means to be equal to.

☆Angle DGE ≅ EGF.

Therefore, 3x + 8 = 5x - 12

☆Let's solve that equation.

[tex]3x + 8 = 5x - 12 \\ \frac{ - 5x \: \: \: \: \: \: \: = - 5x \: \: \: \: \: \: \: \: }{ - 2x + 8 = - 12} \\ \frac{ \: \: \: \: \: \: \: \: - 8 = - 8}{ \frac{ - 2x}{ - 2} = \frac{ - 20}{ - 2} } \\ x = 10[/tex]

We found the value of x which is 10.

☆Let's Now plug in.

[tex]DGE \\ 3x + 8 \\ 3(10) + 8 \\ 30 + 8 \\ 38[/tex]

and the other:

[tex]EGF \\ 5x - 12 \\ 5(10) - 12 \\ 50 - 12 \\ 38[/tex]

☆They asked for what the angle of DGF measured. So we would have to add both sides

[tex]38 + 38 = 76[/tex]

☆The answer is 76

I NEED HELP PLZ I WILL GIVE THANKS AND BRAINLIST

Answers

Answer: Yes, it is in the blue shaded area

Step-by-step explanation:

Yes it is the blue shaded area

During the 2009/2010 school year, Detroit students missed an average of 9 weeks of school. Let's say that the school year is 39 weeks long. If this is true, what percentage of school time did the average student miss that year in Detroit

Answers

Answer:

The percentage of school time missed by the average student during 2009/2010 school year in Detroit is 23.08%.

Step-by-step explanation:

The percentage of school time missed by the average student during 2009/2010 school year in Detroit can be calculated as follows:

Percentage of school time missed = (Average number weeks of school missed / Total number of weeks in a school year) * 100 ................... (1)

Where;

Average number weeks of school missed = 9

Total number of weeks in a school year = 39

Substituting the values into equation (1), we have:

Percentage of school time missed = (9 / 39) * 100

Percentage of school time missed = 0.230769230769231 * 100

Percentage of school time missed = 23.0769230769231%

Rounding to 2 decimal places, we have:

Percentage of school time missed = 23.08%

Therefore, the percentage of school time missed by the average student during 2009/2010 school year in Detroit is 23.08%.

Write the quadratic in standard form please!
-4x+6x^2=-4+3x^2

Answers

-4x +6x²=-4+3x²

6x²-3x²-4x+4=0

3x²-3x+4=0

I WILL AWARD BRAINLIEST TO RIGHT ANSWER
an airplane 30,000 feet above the ground begins descending at a rate of 2000 feet per minute write a linear model to represent the model

Answers

Answer:

y = -2000x+30000

Step-by-step explanation:

Hi. So, you are just setting up a linear equation using slope intercept data. The slope being -2000 (because it is descending) and the intercept being 30,000 at t=0.

y = -2000x+30000

OQ and RT are parallel lines.

Which angles are alternate exterior angles?

Options:
a) <OPN and <OPS
b) <OPN and <TSU
c) <OPN and <QPS
d) <OPN and <QPN ​

Answers

Answer: b) angle OPN and angle TSU

=========================================================

Explanation:

Each answer choice involves angle OPN, so the other angle must be based off this. The other angle is TSU because these two angles are on alternating sides of the transversal line UN.

Angle OPN and angle TSU are also exterior angles because they are on the outside region of the parallel lines OQ and RT.

So combine the two concepts and we can say that angles OPN and TSU are alternate exterior angles. The other alternate exterior angle pair is angle USR and angle NPQ.

Due to the parallel lines, the alternate exterior angles are congruent.

will gibe brainlest and 5 stars and thanks

Answers

Answer:

2160 cm

Step-by-step explanation:

9x5x4x12=2160 :)

Answer:

42

Step-by-step explanation:

Divide the shape into a square and a triangle.

The area of the square would be 4×9 which is 36.

The area of the triangle will be 3*4/2=6

Add them to get 42


This is my last question can someone help me with my homework.

Answers

9514 1404 393

Answer:

  C, A, A

Step-by-step explanation:

In general, you ...

identify the coefficients of one of the variablesswap them, and negate one of themmultiply the corresponding equations by the "adjusted" coefficients.

__

In problem 1, the x-coefficients are 8 and 2. A common factor of 2 can be removed so that we're dealing with the numbers 4 and 1. Assuming we want to multiply one of the equations by 1, leaving it unchanged, the value we want to multiply by will be -4. After we swap the coefficients, that multiplier is associated with equation 2:

  multiply equation 2 by -4 . . . (eliminates x)

Likewise, the y-coefficients in problem 1 are -1 and 3. Again, if we want to multiply one of the equations by 1, leaving it unchanged, the coefficient we will change the sign of is -1 (becomes 1). After we swap the coefficients, the multiplier 3 is associated with equation 1:

  multiply equation 1 by 3 . . . (eliminates y)

These two choices are B and A, respectively, so the one that does NOT work for problem 1 is choice C, as indicated below.

__

The other problems are worked in a similar fashion.

i need help i suck at these

Answers

Answer:

i will help

Step-by-step explanation:

2 hours=21.50

3 hours= 32.25

4 hours= 43.00

Answer:

2 - 21.5

3 - 32.25

4 - 43

Step-by-step explanation:

10.75 × 2 = 21.5 ÷ 2 = 10.75

10.75 × 3 = 32.25 ÷ 3 = 10.75

10.75 × 4 = 43 ÷ 4 = 10.75

If m angle HJM=145 find m angle MHJ

Answers

Answer:

d.  35°

Step-by-step explanation

∠MJH = 180 - 145

           = 35°

Assuming the two angles form a straight line then the measure of the other angle is 35°

What are supplementary angles?

Supplementary angles are those angles that sum up to 180 degrees. For example, angle 130° and angle 50° are supplementary angles because sum of 130° and 50 is equal to 180°

Given here, m∠HJM = 145° then m∠MHJ = 180° - 145°

                                                                   = 35°

Hence the measure of the angle is 35°

Learn more about supplementary angles here:

https://brainly.com/question/13045673

#SPJ2

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