Mathematics High School

3x−8−12x=42
what is x?

Answers

Answer 1

Answer:

x = -50/9    

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

3x - 8 - 12x = 42

Step 2: Solve for x

Combine like terms:                    -9x - 8 = 42Isolate x term:                              -9x = 50Isolate x:                                        x = -50/9          

Related Questions

PLEASE HELP!!
What is the slope for runner 1 and runner 2 ?

Answers

I don’t about 2 but the slope for 1 is 2

find the midpoint rounded to the nearest hundreth a (-2,1) b (-1,1)

Answers

Answer:

[tex](-1.5, 1)[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

Step-by-step explanation:

Step 1: Define

Endpoint A (-2, 1)

Endpoint B (-1, 1)

Step 2: Find Midpoint

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute [MF]:                    [tex](\frac{-2-1}{2},\frac{1+1}{2})[/tex]Subtract/Add:                       [tex](\frac{-3}{2},\frac{2}{2})[/tex]Divide:                                  [tex](-1.5, 1)[/tex]

What are the differences between the graphs of y = 2x and y = 2

Answers

Answer:

Y=2x has a slope of 2, y=2 has a slope of 0

Step-by-step explanation:

Please help!
What is the probability that the arrow will land on a number that is divisible by 3 ir Brian spins it one time?​

Answers

Answer:

%25

Step-by-step explanation:

(THIS IS A TEST I NEED HELP)
In the rectangular prism, PQ is the diagonal. Find the length of
PQ given PR = 7, RS = 4, and QS = 4.
A 4
B 9
C 12
D 15

Answers

Answer:

Option (B)

Step-by-step explanation:

Length of PR = 4

RS = 4

QS = 4

For the length of PT,

PT² = RT² + PR² [Since, PT is the diagonal of rectangle PRT]

PT² = QS² + PR² [Since, RT ≅ QS]

PT² = 4² + 7²

PT² = 16 + 49

PT² = 65

Now for the length of PQ,

PQ² = QT² + PT²

PQ² = RS² + PT² [Since, QT ≅ RS]

PQ² = 4² + 65

PQ² = 16 + 65

PQ = √81

PQ = 9

Therefore, length of diagonal PQ is 9 units.

Option (B) will be the answer.

The first equation in the system of equations that models this situation is x+y=70, where x represents the number of 2-point questions the number of 4-point questions. What is the other equation in the system? Enter the correct answer in the box. Substitute numerical values in the expression for A, B, and C.

Answers

Answer:

2x+4y=150

Step-by-step explanation:

Top answer is right as it is shown in the picture below!

In ΔWXY, the measure of ∠Y=90°, XW = 85, WY = 77, and YX = 36. What is the value of the cosine of ∠W to the nearest hundredth?

Answers

Answer:

0.91

Step-by-step explanation:

find the simple interest for having $2600 in the bank for 4 years the rate is 5%

Answers

Answer:

130 a year, so it would be $520 interest for 4 years in the bank.

please help!
Find the slope of a line that passes through the
following ordered pairs. Reduce to lowest
terms.
(7, 1) (0, -3)

Answers

correct answer is that i need help with this too.

Find the length of the hypotenuse of the right triangle.
40
048
041
None of the other answers are correct
40
26

Answers

Answer:

Ans. 41

Step-by-step explanation:

By using the formula of pythagoras theorem,

h^2 = p^2+b^2

or, h = sqrt(9^2+40^2)

or, h = sqrt(81+1600)

or, h = sqrt(1681)

or, h = sqrt(41^2)

or, h = 41 #

Blake sold 17 verses for $3.25 each he spent $16.21 on materials to make the vases what is the profit

Answers

Answer:

We can calculate what did he get, as we know he sold 17 vasess for 3.25 dollars each of them, we can multiply:

17 * 3.25 = $55.25

Now, we know he got 55.25 dollars but he spent 16.21, so we substract:

55.25 - 16.21 = $39.04

His profit selling that is of 39.04 dollars..

In Heavenly Hash ice cream, the ratio of the amount of cashews to the amount of marshmallows to the amount of chocolate ice cream is 1 : 3 : 36 by volume .

What is the ratio of the amount of marshmallows to ice cream?

Answers

Answer:

90%

Step-by-step explanation:

The ice cream is 1 part cashew, 3 parts marshmallow, and 36 parts chocolate ice cream.  That's a total of 40 parts.  So the fraction that is chocolate ice cream is:

36/40 = 0.9

So 90% of Heavenly Hash ice cream is chocolate ice cream.

What fraction is equivalent to 1/6

A. 3/8

B. 2/8

C. 3/24

D. 4/24

Answers

The correct answer is D. 2/24

Answer:

C

Step-by-step explanation:

Because 24 divided by 3 = 8 and 3/8 has a denominator of 8 and you divide it by 3

could i have branliest and a heart please

Have a good day :)

Help me answer b. c. I need help:(

Answers

Answer:I dont knwo the answer

Step-by-step explanation:tell em

Answer:

C

Step-by-step explanation:

I got it right

Find the product (у- 2)(5у2 + 3y - 1)

Answers

Answer:

5y^3 - 7y^2 - 97y + 2   <<<< Answer

Step-by-step explanation:

(у- 2)(5у2 + 3y - 1)

Multiply the three terms by y

5y^2 * y + 3y * y - 1*y = 5y^3 + 3y^2 - y

Multiply the three terms by - 2

-2*5y^2 -2*3y - 2*-1

-10y^2 - 6y + 2

Now combine the like terms

5y^3 + 3y^2 - 10y^2 - y - 6y + 2

5y^3 - 7y^2 - 97y + 2

Question 18 of 25
If f) =3*+ 10 and glx) = 2x- 4, find (f+ 9)().
OA. (f+ )() = 5x +6
OB. (f+ g)() = 3*+ 2x+ 6
OC. (f+ 9)() = 3r- 2x+ 14
O D. (f+ 9)() =-3*- 2x-14
SUBN

Answers

Answer:

C. (f+ 9)() = 3r- 2x+ 14

Step-by-step explanation:

Please solve and thanks!

Answers

Answer:

1/14(the first one)

Step-by-step explanation:

HELP PLZ I NEED THE RIGHT ANSWER

Answers

Answer:

54

Step-by-step explanation:

As ◇PQS is congruent to ◇ PRS,

6n + 3=4n+11

n=4

QR=6×4+3+4×4+11

GIVING BRAINLIEST PLZZ HELP ASAP

Answers

Answer:

D

Step-by-step explanation:

x and y go up at a constant rate (or you can say it has a CROC or constant rate of chacge) y going up 5 for every one x

with our equation being y = 5x + 5

hope this helps <3

Answer:

Step-by-step explanation:

It would be D because to know if its linear, x has to increase by 1 and y by a constant rate.

X increases by 1 and y increases by 5

I've attached a graph for you to see

If you have any further questions, don't be afraid to reach out! I hope this helps!

The area of the triangle is

square inches.
fill in the blanks

Answers

Answer:

48sq^2

Step-by-step explanation:

(12*8)/2

96/2

48

a bag contains 10 red marbles, the ratio of red marbles to blue marbles is 5 to 1 find the numbers of blue marbles in the bag

Answers

Answer:

The Answer is 2 blue marbles.

Step-by-step explanation:

The numbers of blue marbles in the bag will be 2.

What is proportion ?

A proportion is an equation based on the equality of two ratios.

Here it is given that :

a bag contains = 10 red marbles

the ratio of red marbles to blue marbles is = 5:1

That is :

5 ratio of marbles is equals to = 10 marbles

now,

1 ratio of marbles is equals to = 2 marbles

Therefore, the numbers of blue marbles in the bag will be 2.

Read more about ratio at:

https://brainly.com/question/17869111

#SPJ2

PLEASE HELP ASAP Which of the following expressions is equivalent to the expression 42 + 90?

Answers

Answer:

6(7+15)

Step-by-step explanation:

6×7=42

6×15=90

What is the least common multiple (LCM) of 5 and 9?
14
35
40
45

Answers

Answer:

35

Step-by-step explanation:

The lest commone multiple is 45 I hope this helps

marking brainliest to whoever gives me the write answer

Answers

The page is black. Try reposting please
I would like brainliest please because the answer is a black screen

Remember the question that you helped me with?
can you tell me how I can show my work and get the answer
Because I need to show my work on those two problems

Can you guys also show your work to be and tell me how you guys got the answer because I need to show my work

Answers

Answer:

13. 23 boat rides; 22 are full, and the first one has 301 passengers.

12. $11,067.50

Step-by-step explanation:

13,105 people in a day, divided by 582 per ride.

13,105/582 = 22 (with a remainder)

582 x 22 = 12,804

So, the remainder is

13,105 - 12,804 = 301

23 rides, with 22 full and the first one having 301 people.

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

There are 879,575 tickets sold across 755 theatres. Per theatre,

879,755 / 755 = 1,165 tickets per theatre

1,165 x $9.50 = $11,067.50 per theatre.

Does anyone know the answer to this question. I already tried A and C.

Answers

I think the answer would have to be D. If the diameter, which is the distance from one point on the circle through the center to another point on the circle, is halved then the amount of concrete that will be needed will be multiplied by 4. I think that's right I am so sorry in advance if that was incorrect. Have a beautiful rest of your day. Stay safe. C O V I D - 1 9 IS REAL THIS COULD MEAN YOUR LIFE!!!

Is 3x - y = -6 an euation for a graph

Answers

Answer:

no this can't become a number that can be graphed

Carl Cornfield has been wondering whether he should plant white corn this year. He decides to sample 100 customers. 38% say they would purchase white corn. Carl wants to have a 95% confidence interval for this proportion.

The confidence interval is from 33% to 43% (to the nearest percent).

True
False

Answers

Answer:

true

Step-by-step explanation:

A cinema sold 1000 tickets on a Saturday evening. Adult tickets cost £9, children's tickets cost £5, and a total of £6680 was collected
If there are a Adult tickets and cChildren tickets, write down two simultaneous
equations connecting a and c.
Solve your equations to find how many tickets of each kind were sold.
A=
C=

Answers

Everybody says holy but nobody asks how is the holy cow
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/ \ ♥♥ PEANUT WINGS Just in time for holiday cookie season, we’ve discovered that the vanilla flavoring in your baked goods and candy could come from the butt hole excretions of beavers.

If pens cost 15 cents, how many can you buy with $3.00?

Answers

3.00/0.15 = 20
You can buy 20 pens
you can buy 20 pens. divide 300 (3.00 in cents) by 15 and it results in 20.
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