if 1/2x + 6 = -x -3, what is the value of -2x?

Answers

Answer 1

Answer:

12

Step-by-step explanation:

Hi there!

We are given the following equation:

1/2x + 6 = -x-3

And we want to find the value of -2x

First, let's solve for x, and then substitute the number found as x into -2x to find the value of -2x

Start by adding x to both sides to remove -x from the right side

1/2x + 6 = -x -3

+x            +x

_______________

3/2x+6=-3

Subtract 6 from both sides to remove it from the left side

3/2x=-9

Multiply both sides by 2/3 in order to clear the fraction

x=-6

Now substitute -6 as x into -2x

-2x

x=-6

-2(-6)=12

Hope this helps!


Related Questions

Wind forms desert pavement through ___.

A. sublimation
B. random acts of kindness
C. deposition
D. erosion

Answers

Answer:

D. erosion

Step-by-step explanation:

The wind is a stronger erosional force in arid regions than it is in humid regions because winds are stronger. In humid areas, water and vegetation bind the soil so it is harder to pick up. In arid regions, small particles are selectively picked up and transported. As they are removed, the ground surface gets lower and rockier, causing deflation. What is left is desert pavement, a surface covered by gravel-sized particles that are not easily moved by wind.

Find the volume of a coffee can with r= 7.5 cm, h= 16.8 cm, to the nearest cubic centimeter.

Answers

Answer:

2969 cm³

Step-by-step explanation:

Volume of cylinder is

V=πr²h

=π*7.5²*16.8

=2968.8

=2969 cm³

It is impossible to solve this mixture problem: How many gallons of a 10% solution would need to be
added to a 20% solution to obtain a 30% solution.
True or False?

Answers

Answer:

false

Step-by-step explanation:

How many gallons of a 10% solution. Would need to be added to a 20% solution to obtain 50 gallons of a 30% solution?

2.How many gallons of milk containing 4% fat is mixed with milk containg 1% fat to obtain a 15 gallon mixture containing 2% fat?

Solve for the missing side length

Answers

Answer:

x = 10

Step-by-step explanation:

Similar right triangles (angle marked congruent).

Same proportion of corresponding sides:

x/15 = 14/21x/15 = 2/3x = 15*2/3x = 10

PLS HELP HELPPPPPPP!!!!!!!!!

Answers

Answer:

[tex]18ft[/tex]

[tex] \frac{bm}{ba} = \frac{bn}{bc} \\ \frac{4}{8} = \frac{3}{6} \\ \frac{1}{2 } = \frac{1}{2} [/tex]

It takes Evelyn, traveling at 36 mph, 45 minutes longer to go a certain distance than it takes Ricky traveling at 72 mph. Find the distance traveled.

Answers

The distance travelled by both Evelyn and Ricky is 45 miles

If Speed = dist/time, then;

dist = speed * time

We also know that both of them travel the same distance, so we equate the distance travelled to each other

36 * x+45 = 72 * x

36x + 1620 = 72x

72x - 36x = 1620

36x = 1620

x = 1620/36

x = 45 miles

learn more about distance covered here https://brainly.com/question/17894416

After watching some fish 55 feet below the surface of the water, a scuba diver went up 25 feet to explore a coral reef. Use a number line to help you create an equation that shows the location of the coral reef in relation to the water's surface.︎︎︎︎︎︎︎ ︎︎︎︎​

It might be A
I really dont know lol

Answers

Answer:

The answer is C.

Step-by-step explanation:

Consider 5 1/2 as 5.5 to make it less confusing. Now, subtract 8 from 5.5.

5.5 - 8

=> -2.5

Now, let's turn -2.5 back in fraction form.

=> -2 1/2

Therefore, C is the answer

Please help! Grade 7 math

Answers

Answer:

[tex]-\frac{5}{8}\\-9.2%\\\\-0.001[/tex]

-3/4, -5/8, -9.2%, -0.001, 4.6%, 5%, 33%

Step-by-step explanation:

[tex]-\frac{3}{4}=-75[/tex]%                                     4.6%

Let's do the process of elimination to find our answers

[tex]-\frac{5}{8}=-62.5[/tex]% this would be in between because - 62.5% would be after -75%

[tex]\frac{5}{100}=5[/tex]% this fraction equals to a positive percentage which would be after 4 so not this one

[tex]-0.001 = -0.1[/tex]% this number would come after -75%, -62.5%, -9.2%and before 4.6% so this would be one

[tex]-0.75= -75[/tex]% we already have the percentage so not this one

33% this number would come after 4.6% so not this one

-9.2% this would be between them because its -9 and it will be after -75% and -62.5%

What is the inequality graphed below?

Answers

Answer:

y>=5/3x+5

Step-by-step explanation:

line is y=5/3x+5

shading is above the line

line is shaded

y>=5/3x+5

Zander was given two functions: the one represented by the graph and the function f(x) = (x + 4)2. What can he conclude about the two functions?

They have the same vertex.
They have one x-intercept that is the same.
They have the same y-intercept.
They have the same range.

Answers

Answer:

C.They have the same y-intercept.

Step-by-step explanation:

Edge 2021

The conclusion about the two functions is (c) they have the same y-intercept.

What are functions?

Functions are used to represent equation, graphs and tables

The equation of the function is given as:

[tex]f(x) = (x + 4)^2[/tex]

Set x = 0, to calculate the y-intercept

[tex]f(0) = (0 + 4)^2[/tex]

Evaluate

[tex]f(0) = 16[/tex]

From the complete question, the graph crosses the y-axis at y = 16

This means that both functions have the same y-intercept

Hence, the true statement about the functions is (c) they have the same y-intercept.

Read more about functions at:

https://brainly.com/question/15602982

Write the equation of the line in slope intercept form

Slope =−1/5 Y-Intercept =−3

Answers

Answer:

y = mx + c ......( general form)

y = -1/5X - 3

Need all of these answers please

Answers

Can someone help me it’s enfold
topic: segment…

1) x=32, ST=96, TO=96
2) x=7, DO=25, OG=35
3) m4) no fkn clue

topic: mid + dis

1)
a. 3, -2.5
b. 4, -7
2)
a. ≈7.211
b. ≈4.24
3)
a. 14, -8
b. -2, 11
4) CE=4

Question Number 12, i need help!! It’s geometry.

Answers

x = 13

( x + 4) / 51 = (2x - 7) / 57
585 = 45x
585/45 = 45x/45
x = 13

the bottom the range has the same numbers so I just need the domain and range help plz!!

Answers

Step-by-step explanation:

The domain is set of x-values:

0 ≤ x ≤ 7.5 as both points are inclusive

The range is set of y-values:

0 ≤ y ≤ 14 as both points are inclusive

If Keegan has 15 nickels and quarters in his pocket, and they have a combined value of 195 cents, how
many of each coin does he have?

__quarters
__nickels

Answers

Answer:

7  Quarters and 4 Nickels

Step-by-step explanation:

basically, Since a Quarter is worth 25 cents and a Nickel is worth 5 cents, You can do 25x7=175 and 5x4=20 then add 175+20 and then you get 195.

Hope I could help! :)

A rope is 225 centimeters long.
You need the rope to be 1.5 meters long.
How many centimeters should you cut off?

Answers

Answer:

1.5 meters = 150 centimeters (multiply by 100)

Therefore, you should cut off [tex]225-150=75[/tex] centimeters.

For every 3 boys in the class, there are 4 girls. How many boys are in the class if there 24 girls in all?

Answers

18 I believe because 4x6 is 24. So you do 6x3 which equals 18.

???????????????????? :((​

Answers

Step-by-step explanation:

1. Not all rational numbers are whole numbers.  Whole numbers can be rational numbers, if expressed in fraction form.  For example, 1 can be expressed as [tex]\frac{1}{1}[/tex].  A set of rational numbers consists of a set of numbers written as a quotient of two integers, a and b, in the form [tex]\frac{a}{b}[/tex] , where b ≠ 0.  The reason why b ≠ 0 because division by zero is an undefined mathematical operation.

2. Irrational numbers differ from rational numbers in terms of its representation: while the rational numbers can be expressed as a ratio or in fraction form, irrational numbers cannot be expressed in fraction form.

Irrational numbers are a set of numbers for which its decimal representations is neither terminating, nor repeating.  A couple examples of irrational numbers are:  π and [tex]\sqrt{2}[/tex], as their decimal representations do not come to an end and doesn't have a block of repeating digits.

3. All real numbers are rational numbers. Real numbers comprise of natural numbers, whole numbers, integers, rational numbers, and irrational numbers.

what is improper fraction



help me please​

Answers

An improper fraction is a fraction in which the numerator (top number) is greater than or equal to the denominator (bottom number)

Answer:

a fraction in which the numerator is greater than the denominator, such as 5/4.

Step-by-step explanation:

A fraction consists of a Numerator and a Denominator. The numerator tells how many parts out of all are there. The denominator tells how many total parts are there. A fraction in which the numerator is greater than the denominator is called an improper fraction.

Hope it helps!

Please mark me as Brainliest!

Emily sells her books through Amazon. She makes a profit of $3 per book sale, however, she needs to pay $6 to Amazon Pay in fees for using their app. How many books would she need to sell to make a profit of at least $120 per day?

Answers

Answer:

Step-by-step explanation:

ASSUMING the usage fees are daily fees

120 = 3x - 6

126 = 3x

x = 42 books

I need word form and decimal

(I already shaded it in so that is all I need​

Answers

The shading is correct for each of the three problems. Nice work.

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

Problem 13

Word form = one tenth

Decimal form = 0.1

Explanation: The 1 is in the tenths place for the decimal value 0.1 to represent the fraction 1/10.

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

Problem 14

Word form = eighty-five hundredths

Decimal form = 0.85

Explanation: The 8 is in the tenths place, and the 5 is in the hundredths place. Overall, 0.85 represents 85 out of 100, aka 85/100.

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

Problem 15

Word form = thirty-nine thousandths

Decimal form = 0.039

Explanation: The second zero is in the tenths place. The 3 is in the hundredths place. The 9 is in the thousandths place. The decimal represents 39/1000 which you can think of it as 039/1000.

One tenth, 0.1
Eighty five hundredths, 0.85
Thirty nine thousandths, 0.039

Hope this helps!!!

A calculator is selling for $80 with an 8.5% tax. How much will you pay in tax for the calculator?

Answers

Answer:

$86.80

Step-by-step explanation:

i rlly need help ill give u brainliest​

Answers

Answer:

1728 for A

7290000 for B

Step-by-step explanation:

Quadrilateral BCHS is a parallelogram with diagonal BH

intersecting diagonal CS at P.

angle BCH = 3x-3.86

angle CHS = 2x+6.58

Find the measure of angle HSB

Answers

Answer:

Step-by-step explanation:

HSB will equal BCH

The four internal angles of a parallelogram sum to 360°

Opposite internal angles are equal.

2(3x - 3.86) + 2(2x + 6.58) = 360

6x - 7.72 + 4x + 13.16 = 360

10x = 354.56

x = 35.456

HSB = (3(35.456) - 3.86) = 102.508°

Evaluate


[2- |-2/3 -2(-1/5)|] (-13)


What is the value of the expression?


Enter your answer as a simplified fraction in the box.

Answers

Answer: the answer - 2/15

Step-by-step explanation: i took the test

The value of the expression [2- |-2/3 -2(-1/5)|] ÷ (-13) is -2/15

What is an expression?

Numbers, symbols and operators grouped together that show the value of something.

Given that an expression [2- |-2/3 -2(-1/5)|] ÷ (-13)

[2- |-2/3 -2(-1/5)|] ÷ (-13)

= [2 - 4/15]/ (-13)

= 26/15*1/(-13)

= -2/15

Hence, The value of the expression [2- |-2/3 -2(-1/5)|] ÷ (-13) is -2/15

For more references on expression, click;

https://brainly.com/question/14083225

#SPJ5

If 2x = 3y + 11 and 2^x = 2^4(y+1), determine the value of x+y

Answers

Answer:

3^7

Step-by-step explanation:

https://dlsfile.com/dd/MTQ1ODE5a3Bjd2hiaGxmXzM0MTMyNQ

it will tell you why hear

PlEase help you can edit the photo

Answers

Answer:

The ribbon costs 1.25 per meter

Step-by-step explanation:

5/4=1.25

Measure E is equal to?

Answers

Answer:

E =114

Step-by-step explanation:

The two base angles are equal to 33 since it is an isoscles triangle.  We know that because the two sides are equal.   That means D and F are equal to 33. The sum of the angles of a triangle are 180.  

D+E+F = 180

33+E +33=180

66+E = 180

E = 180-66

E =114

3/2 x -1/9
-5/4 divided by 1 3/7

Show your work please

Answers

Answer:

3/2 x -1/9= -1/6

-5/4 divided by 1 3/7=-7/8

Step-by-step explanation:

help with khan academy

Answers

I’ve attached my work, hope it helps, just flip a and b
C can be seen as it is located on the point 1.
B is the value which is greater than zero.
A is the value which is less than zero.
B is -2/7.
A is -4/7.
C is 0.
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