What value of x makes this equation true?
12x - 15 = 6 - 3x

What Value Of X Makes This Equation True?12x - 15 = 6 - 3x

Answers

Answer 1

Answer:

7/5

Step-by-step explanation:

Isolate x

12x-15=6-3x

12x-15+15=6-3x+15 (add fifteen, addition property of equality)

12x=6-3x+15

12x=21-3x (combine like terms)

12x+3x=21-3x+3x (add 3x, addition property of equality)

15x=21 (combine like terms)

15x/15=21/15 (divide by 15, division property of equality)

x=7/5 (simplify)


Related Questions

8 × 4 ÷ 3 + 5 2 - 8 Can Someone Answer This Algebra Question

Answers

Answer:

164/3

Step-by-step explanation:

164/3 just divide the fraction for your answer.

Which represents the polynomial written in standard form? 4m – 2m4 – 6m2 + 9 9 + 4m + 2m4 – 6m2 2m4 – 6m2 – 4m + 9 9 – 6m2 + 4m – 2m4 –2m4 – 6m2 + 4m + 9

Answers

Answer:

[tex]- 2m^4 - 6m^2 + 4m + 9[/tex]

Step-by-step explanation:

Given

[tex]4m - 2m^4 - 6m^2 + 9[/tex]

Required

Express in standard form

To do this, we simply reorder the terms of the polynomial in descending order of power.

So, we have:

[tex]- 2m^4 - 6m^2 + 4m + 9[/tex]

Answer:

D

Step-by-step explanation:

7th grade math help me pleaseeee

Answers

Answer:

0.325

Step-by-step explanation:

13 ÷ 40 = 0.325

Yo, why is your school still going on? :))))

Answer:

0.325

Step-by-step explanation:

13 out of 40 days.

13/40= 0.325

Oliver wants to buy a new TV. The price was $985. When he goes to the store a
second time, he found that price was marked down by 35%. What is the new
price of the TV?

Answers

Answer:

$640.25

Step-by-step explanation:

Answer:

$640.25

Step-by-step explanation:

WILL GIVE BRANLIEST! pls help thank u sm!! :-) u are all amazing

Answers

Answer:

B

Step-by-step explanation:

Given a system of equations graphically, then the solution is at the point of intersection of the 2 equations.

As can be seen from the graph there is only 1 point of intersection, thus only one solution,

The answer to this question is B

Please helpppp HURYYYYYYY

Answers

Answer:

C

Step-by-step explanation:

The sales tax in a city in Chicago was 5.5%. Ms.M spent $60 on presents for
family members. What was Ms.M's total including sales tax?

Answers

Answer:

$63.30

Step-by-step explanation:

Assuming the $60 is excluding taxes:

60 * 1.055 = $63.30

PLEASE HELP ME SO I CAN MOVE ON FROM THIS TOPIC

Answers

Answer:

3rd option

Step-by-step explanation:

([tex]\frac{f}{g}[/tex] )(x)

= [tex]\frac{f(x)}{g(x)}[/tex]

= [tex]\frac{2x^2-5x-3}{2x^2+5x+2}[/tex] ← factorise numerator and denominator

= [tex]\frac{(x-3)(2x+1)}{(x+2)(2x+1)}[/tex] ← cancel (2x + 1) on numerator/ denominator

= [tex]\frac{x-3}{x+2}[/tex]

Simplify 10( to the power of 9) divided by 10( to the power of 7)

Answers

10^2 which equals 100

The simplified form of 10⁹/10⁷ is 100.

The given expression is,

10⁹/10⁷

Since we know that,

Exponentiation is the process of expressing huge numbers in terms of powers. That is, exponent refers to the number of times a number has been multiplied by itself.

Since we also know that,

When base of exponent is same then while dividing we subtract the power of denominator from the power of numerator,

Therefore,

we can write the given expression

10⁹/10⁷ =  [tex]10^{(9-7)}[/tex]

            = 10²

            = 10 x 10

            = 100

Hence,

10⁹/10⁷ = 100

To learn more about exponent visit

https://brainly.com/question/31242910

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I need geometry help please!!!

Answers

Your answer is correct .

Answer:

EF~GI

Step-by-step explanation:

I got it right on the quiz:)

A: x=59
B: x=73
C: x=87
D: x=93

Answers

Answer:

A x=59 is yr correct answer

hope it helps

stay safe healthy and happy...

Answer:

[tex]x = 59[/tex]

Step-by-step explanation:

[tex](x + 17) = 76[/tex]

[tex]x = 76 - 17[/tex]

[tex]x = 59[/tex]

Hope it is helpful...

Look at points C and D on the graph:

A coordinate plane graph is shown. Point C is at negative 5 comma negative 1. Point D is at 0 comma 3. A segment connects the two points.
What is the distance (in units) between points C and D? Round your answer to the nearest hundredth. (4 points)

Answers

Answer:

I think point D is the answer.

Step-by-step explanation:

Answer:

5 units

Step-by-step explanation:

Sally's parents deposited $15,000 into a college savings account on her third birthday. The account had an interest rate of 9.6% compounded annually. They were hoping that the money would double twice by the time she was 18 years old. Using the rule of 72, t = StartFraction 72 Over r EndFraction will their hopes come true?

Answers

Answer:

their hopes will come true

Step-by-step explanation:

Using the formula for calculating amount expressed as;

A = P(1+r)^t

Given

P = $15000

r = 9.6% = 0.096

t = 15years (18-3)

Substitute;

A = 15,000(1+0.096)^15

A = 15,000(1.096)^15

A = 15000(3.9551)

A = 59,326.6

As we can see, the money is even more than twice the original amount, this shows that their hopes will come true

Answer:

a. Yes, the $15,000 will double each 7.5 years. In 15 years, it will double twice.

Please help me with 4 I’d really appreciate it

Answers

Step-by-step explanation:

4a) The pressure of a basketball can have a large tolerance.

b) Writing an exam has a very low tolerance in terms of time allotment.

c) The amount of milk in a carton has a low tolerance.

What is an equation of the line that passes through the points (6,-6) and (-2,-2)

Answers

Answer:

[tex]y=-\frac{1}{2}x-3[/tex]

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

1) Determine the slope (m)

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex] where the two given points are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]

Plug in the given points (6,-6) and (-2,-2)

[tex]=\frac{-2-(-6)}{-2-6}\\=\frac{-2+6}{-2-6}\\=\frac{4}{-8}\\=-\frac{1}{2}[/tex]

Therefore, the slope of the line is [tex]-\frac{1}{2}[/tex]. Plug this into [tex]y=mx+b[/tex]:

[tex]y=-\frac{1}{2}x+b[/tex]

2) Determine the y-intercept (b)

[tex]y=-\frac{1}{2}x+b[/tex]

Plug in one of the given points and solve for b

[tex]-6=-\frac{1}{2}(6)+b\\-6=-3+b[/tex]

Add 3 to both sides

[tex]-6+3=-3+b+3\\-3=b[/tex]

Therefore, the y-intercept of the line is -3. Plug this back into [tex]y=-\frac{1}{2}x+b[/tex]:

[tex]y=-\frac{1}{2}x-3[/tex]

I hope this helps!

One of the heaviest rainfalls ever recorded occurred in Holt, Missouri, when 12 inches of rain fell in 40 minutes. At this rate, how much rain would fall in an hour?

Answers

18 inches would fall in an hour

please help me solve this !

Answers

Answer:

12.826 i think

Step-by-step explanation:

12.126 is the earth

Line u has a slope of
-2/5 is parallel to line u. What is the slope of line v?

Answers

Answer:

-2/5

Step-by-step explanation:

The slope will be same , that is -2/5 .

Which values are solutions to the inequality below? Check all that apply
sqrt(x) < 13
A. 26
b. 251
C. 28561
d.170
e. 1
F. 15

Answers

a, e, and f! hope it helps

Answer:

A, E, F

Step-by-step explanation:

With this question, it's mostly just trial and error.

[tex]\sqrt{26}[/tex]<13 can be converted to 5.09901951<13, which is true.

[tex]\sqrt{251}[/tex]<13 can be converted to 15.8429795<13, which is false.

[tex]\sqrt{28561}[/tex]<13 can be converted to 169<13, which is false.

[tex]\sqrt{170}[/tex]<13 can be converted to 13.0384048<13, which is false.

[tex]\sqrt{1}[/tex]<13 can be converted to 1<13, which is true.

[tex]\sqrt{15}[/tex]<13 can be converted to 3.87298335<13, which is true.

Therefore, A, E and F are true.

**This question involves using inequalities and converting surds to numbers/decimals, which you may want to practice. I'm always happy to help!

mitchell has two rectangular prisms. prism B has a height that is twice the height of a prism A. The length and width of prism B are the same as the length and width of Prism A. The volume of prism B is

Answers

Answer:

b I think it' hope I helped

Help answer correctly please !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: 23.4 ft^3

Step-by-step explanation: The perimeter of the base is 10.7, it is a square so the 4 sides of the base are equal. One side of the base is equal to 2.675 if the perimeter (4 sides) is equal to 10.7, so plug that and the height into the formula for the volume of a square pyramid to get 23.38, or 23.4 to the nearest tenth.

Answer:

v ≈ 34.95ft^3

Step-by-step explanation:

h = 9.8ft

A^B = 10.7ft

V=A^B

h/3 = 10.7 • 9.8/3

≈34.95333ft^3

≈34.95ft^3

PLEASE HELPP MEEE ASAPPPPP

Answers

I would need to see the drop down, but I think it's perpendicular and touching.

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Answers

Answer:

miss rages is the best way of doing that and it will take a few months for a kid

Answer:

the answer is 20

32/8=h/5

cross multiply and boom!

I hope this help sry if it doesnt!

Step-by-step explanation:

If 3^(2x1)=3^(x+5), what is the value of x?

Answers

Answer:

its -3

Step-by-step explanation:

since the bases are equal then the powers are equal

[tex] {3}^{2} = {3}^{x + 5} \\ \\ 2 = x + 5 \\ x = - 3[/tex]

Which number is between 7.17 x 104 and 8.17 x 105 ?
A. 6.92 x 104
B. 7.2 x 10
C. 7.57 x 103
D. 8.053 x 104

Answers

Answer:

D 8.053×104 is the answer I think so

EASYYY POINTSSS!!!!! PLZZZZZ HEALP



How many different ways are there to arrange the letters MILKTEA such that TEA is a contiguous substring?

For reference, the term “contiguous substring” means that the letters TEA appear in that order, all next to one another. For example, MITEALK would be such a string, while TMIELKA would not be.

Answers

Answer:

120

Step-by-step explanation:

Pretend to rubber-band TEA together so it counts as one letter. The problem then becomes: How many ways can you rearrange 5 letters (M, I, L, K, TEA)? To solve that, it's 5! or 120 ways. I hope this is correct and it helps! :)

If the suspect is found guilty, then he will go to prison.

Which of the following is a logically equivalent statement to the conditional statement above?

If the suspect does not go to prison, then he was not found guilty.
If the suspect goes to prison, then he was found guilty.
If the suspect is not found guilty, then he will not go to prison.
If the suspect is not found guilty, then he will go to prison.

Answers

Answer:

If the suspect goes to prison, then he was found guilty.

Step-by-step explanation:

Means the same thing. If you guilty, you get the jail time. Same thing as before. The only other one it could be is the first one. But you could argue that one.

28 Marks
.
Two numbers have these properties.
Both numbers are greater than 6.
Their highest common factor (HCF) is 6.
Their lowest common multiple (LCM) is 60.
Find the two numbers, writing your answers on one line in the form,
The two numbers are ... and..

Answers

Answer:

HCF×LCM=a×b

6×60=a×b

a×b=360

So the numbers are whose product is 360 and LCM is 60

These two numbers can be 6,60 or 12,30

HELP PLEASE THIS IS DUE IN 15 MIN
The function h defined by h(t)=(49 + 4.9t)(10 - t) models the height, in meters, of an object t seconds after it is dropped from a helicopter.
From what height is the object dropped? Explain how you know.

Answers

hi! i think it’s 490 meters, hope it helped

Ozzie the Owl was up in a pine tree 41 feet high. He saw a tasty looking squirrel that was 12 feet from the base of the tree. Use the Pythagorean Theorem to calculate the distance Ozzie would have to fly in order to pick up the squirrel.​

Answers

Answer: Use the base times hight to get the hypotenuse

Step-by-step explanation:

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