Solve –2(3x – 1) = 20 for x

Answers

Answer 1

Answer:

x = -3

Step-by-step explanation:

Distribution

3x(-2) -1(-2) = 20

-6x +2 = 20

Subtraction Property of Equality

-6x + (2 - 2) = (20 - 2)

-6x = 18

Division Property of Equality

(-6x/-6) = (18/-6)

x = -3

To check just plug in x

Answer 2
-6x + 2 = 20
-6x = 18
x = 3

Related Questions

help I’ll give brainliest

Answers

Answer: The median of the upper half of a set of data is the upper quartile ( UQ ) or Q3 . The upper and lower quartiles can be used to find another measure of variation call the interquartile range . The interquartile range or IQR is the range of the middle half of a set of data.

Step-by-step explanation:

5/7x1/2 please need help now

Answers

The exact form is 5/14

Which expression represents a number, p, added to the difference of 25 and 5?


A. 25-5+p
B. 25-5-p
C. 25+5-p

Answers

A, it correctly shows p added to 25-5.

Answer:

A.

Step-by-step explanation:

What is the first correct step in solving the inequality-4(3-5x)>-6x+9?

Answers

Answer:

follow PEMDAS (parentheses exponents multiplication division add subtract)

If sin 0 >0 and cos 0 = 0, then which of the following is
true?

Answers

Answer:

Step-by-step explanation:

There's no list but one answer would be sin O = 1.

how much is 1000 subtract 4​

Answers

Answer:

your answer is 996

1000 - 4 = 996

how many 1/2 inch cubes does it take to fill a rectangular prism with a length of 1 inch, a width of 2 inches and a height of 3 inches

Answers

Answer:

Step-by-step explanation:

A 34 foot tall poll is supported by 2 wires that are anchored 8 feet from the base of the pole how many feet or wire is needed for the support wires​

Answers

Using the Pythagorean theorem:

Length of wire = sqrt(34^2 + 8^2)

Length of wire = sqrt(1156 +64)

Length of wire = sqrt(1220)

Length of wire = 34.9285 feet

There are 2 wires:

34.9285 x 2 = 69.857 feet

Round off as needed.

Answer:

34.93 feet

Step-by-step explanation:

Using a^2+b^2=c^2

we can substitute a and b in which is

34^2+8^2=c^2

1156+64=c^2

1220 = c^2

Now we need to square both sides

√1220 = √c^2

34.9284983931 ----> 34.93

34.93 = c

c = 34.93

sreg
Triangle ABC is reflected across line m to form triangle PRS.
B
R
m
с
Which statement must be true?
O The length of AB = the length of SR
O The length of BC = the length of RP
OMZA = MZS
OmZB = mZR

Answers

Answer:

m∠b = m∠r

Step-by-step explanation:

The triangle was reflected across line m.

A reflection is a rigid transformation. A rigid transformation does not change the measurement or size of a shape, so the pre-image and the image are congruent.

The angles on the pre-image corresponds to the angles on the image. This also is for line segments.

This means (for angle measurements):

Angle A is congruent to Angle P

Angle C is congruent to Angle S

Angle B is congruent to Angle R

Option D should be the correct answer.

Select the correct answer. What is the range of function m? m(x) = √x - 3 + 1​

Answers

Answer:

i think it is b

Step-by-step explanation:

The range for m is [3, ∞)

What is function?

In mathematics, a function is represented as a rule that produces a distinct result for each input x. In mathematics, a function is indicated by a mapping or transformation. Typically, these functions are identified by letters like f, g, and h. The collection of all the values that the function may input while it is defined is known as the domain. The entire set of values that the function's output can produce is referred to as the range. The set of values that could be a function's outputs is known as the co-domain.

Given:

m(x)= √(x- 3) + 1

For x= 0

m(0) = √(-3) + 1

m(0) = √3i + 1

So, m ≠ 0, 1, 2 because it leads to imaginary value.

Thus, m ≥ 3

i.e., m=4

m(3)= √3-3 + 1= 1

and, m(4)= √(4- 3)+ 1 = 2

Hence, the range for m is [3, ∞)

Learn more about function here:

https://brainly.com/question/12904030

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f(x) = 3sinxº
Find f(22)
Give your answer correct to 3 significant figures.

Answers

Answer:

f(22) = 1.12

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 3sinx°

f(22) is x = 22

Step 2: Evaluate

Substitute in x:                                                                                               f(22) = 3sin22°Trig:                                                                                                                 f(22) = 3(0.374607)Multiply:                                                                                                           f(22) = 1.12382Round:                                                                                                            f(22) = 1.12

five and three sixths minus two and one third

Answers

Answer:

19/6

Step-by-step explanation:

5 3/6 - 2 1/3 = 19/6

Multiply the following using the vertical multiplication method:
x² + 5x+1
x3x2 - 2x + 4

Answers

It’s x3x2-2x+4 for sure

1. lara but a dress that originally cost 575 with 20% discount how much did lara pay for the dress

2. a salesman sells a car for 860,000 if you receives a commission of 15% how much will be his commission

Answers

Answer:

( $ 120 )

Step-by-step explanation:

cause

p they original price given

p - 2p = 96

8 p = 96

p = 120

sana makatulong carry on

3. Solve for x.
(x-2)(x+ 8) = 0

Answers

Answer:

x = 2, x = -8

Step-by-step explanation:

Since the equation equals 0, you know either (x-2) or (x+8) has to equal 0.

This means x = 2, and x = -8

Hope this helps!

If a pinhead is about 2.5 millimeters in diameter, how much larger is the pinhead than
dust mite?

Answers

Answer:

2.2 - 2.3 millimeters

Step-by-step explanation:

Answer:

Do you know how big the dust mite is?

Step-by-step explanation:

After two six-sided dice are rolled, what is the probability that the dice faces add up to either a 4 or 6?
0.222
0.139
0.167
0.083

Answers

Answer:

0.222

Step-by-step explanation:

out of 36 outcomes you have 8 possible outcomes for a '4' or '6':

1,5

5,1

3,3

2,4

4,2

2,2

1,3

3,1

8/36 = 2/9 = .2 repeating

The probability that the dice faces add up to either 4 or 6 is 0.222.

What is Probability?

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event.

Here, After two six sided dice are rolled,

Hence, Total outcomes = 36

So, Probability of getting sum 4 that is,  {(1, 3), (2, 2), (3, 1)};

P = 3/36    

And, Probability of getting sum 6 = 5/36

Hence, Total Probability of getting sum either 4 or 6 = 3/ 36 + 5/36

                                                                         = 8/36

                                                                         = 2/9

                                                                         = 0.222

Thus, the probability that the dice faces add up to either 4 or 6 is 0.222.

Learn more about Probability from:

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TIMED
The model shows the addition expression 18 + 12
One expression that is equivalent to this sum is

3 + 6 + 4
3(6 + 4)
3 + 6(4)
3(6) + 4

Answers

Answer:

3(6 + 4)

Step-by-step explanation:

We have a model that is showing a certain expression, while knowing that the expression it's showing is "18 + 12"

To solve, all we have to do is simplify the answers. Do as following :

A. 3 + 6 + 4

This is already incorrect, the answer is split into three numbers and we are only looking for two, even if you try combining the numbers to make 2 terms, you will not get 18 + 12.

B. 3(6 + 4)

This is correct, the answer is a distribution problem that when solving :

(3(6) + 3(4))

18 + 12

Gives you what the question is asking for.

C. 3 + 6(4)

This is incorrect, when you distribute 6 and 4, you get 24. Leaving you with the expression 3 + 24.

D. This is incorrect, when you distribute 3 and 6, you get 18. Leaving you with the expression 18 + 4.

Write the product in standard form.
(2.3 x 10^2). (1.5 x 10^3)

Please help

Answers

The correct answer is 3.45x10^5

As a car moves along a section of the roadway in a mountain pass, it passes through a horizontal run of 950 feet and through a vertical rise of 35 feet. To the nearest foot, how far does the car move along the roadway?

Answers

Answer:

I believe it will be 55.9 or 56 along the roadway

Step-by-step explanation:

Hope this Helped

What would the figure below look like after a reflection across the x-axis?

Answers

third one is across the x-axis

What is the sum of the polynomials? (6x+7x+x^2)+(2x^2-3x)

Answers

Answer:

3x^2 + 10x

Step-by-step explanation:

If 3x = 6, then x = 2.
a. Addition b. Subtraction c. Square root d. Division

Answers

Answer:

Its D. Division

Step-by-step explanation:

Because you have to divide 3 from x and also to 6 and you will get x equals 2.

The answer is d. Division.

Explanation:

3x = 6

3x/3 = 6/3 {Divided by 3}

x = 2

Hope it helps!

NEED THE ANSWER ASAP

Answers

the answer is B cuz addition and the corresponding prices and variables

Answer:

D. 4.15c + .94s

Step-by-step explanation:

4.15 is how much the cashews cost per pound, this multiplied by c would be the full cost of however many pounds of cashews are being purchased.

.94 is how much the sugar costs per pound, this multiplied by s would be the full cost of however many pounds of sugar is being purchased.

to get the full cost of both, you add these equations together (4.15c + .94s)

(–8x + 7y) + 9y + (–8x)

Answers

The answer is -16x+16y
The answer is -16x + 16y

A tree casts a shadow 38 m long.
At the same time, the shadow cast by a 37 cm tall
statue is 75 cm long.
Find the height of the tree. Use correct units.

Answers

Answer:

Step-by-step explanation:

let the height of tree=h

[tex]\frac{h}{38} =\frac{37}{75} \\h=\frac{37}{75} \times 38 \approx 18.75 ~cm[/tex]

46.8 divided by 39 equals what

Answers

The answer is 1.2 hope this helps

Answer:

1.2

Step-by-step explanation:

5/7 times 1/6 ANSWER IN UNDER 2 MINUTS AND ILL MAKE YOU BRAINLIEST

Answers

Answer: GIVE ME BRAINLIEST the answer is 5/42

Step-by-step explanation:

Answer:

5/42

Step-by-step explanation:

It's simple multiplication, just multiply across.

the total length of 3 boards are 7/8 of a yard. The lenght of 2 boards are 1/4 of a yard and 3/16 of a yard. What is the length of the third board?

Answers

Answer: 7/16 of a yard

Step-by-step explanation:

first we have to find common denominators. 3x=7/8, or 3x=14/16

1/4=4/16 then 14-4-3=7, all over 16.

find the value of x

Answers

Answer:

X=65.4 Degrees

Step-by-step explanation:

Hehe ;)

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