7. Seven times a number is equal to 12 more than 3 times the number.

Answers

Answer 1

Answer:

7n = 12+ 3n

Step-by-step explanation:

The first thing to do is subtract 3n from 7n. This would get you 4n = 12. 4 times 3 equals 12, so n equals 3.

To check your answer. 21 = 12+9. sure enough it matches our answer


Related Questions

Solve.
2
— x 6 =
9

What’s the answer?

Answers

14x huggugihhivuvivihihuhuhij

If a18-a12=24.Find d.
with steps.....​

Answers

Answer:

let common difference be d.

a 18=a+17 d

a 14=a+13 d

a+17d - (a+13d) =32

a+17d - a - 13d =32

17d - 13d = 32

4d = 32

d=32/4

d=8

common difference=8

Step-by-step explanation:

(Brainliest if im correct?)

Can anyone help? It’s not -312,44,nor 92

Answers

Answer:

60

Step-by-step explanation:

4a + 2b² -2(a-3b)

a = 2 and b = 4

4(2) + 2(4)² - 2(2-3(4))

8 + 32 -2(2-12)

40 - 2(-10)

40 +20

60

Therefore 60 is correct.

Find the radius of the two other circles

Answers

Answer:

We draw the circles on a coordinate system.  We know that a circle is has points that are equidistant from its centerpoint.   So the point where these circles are tangent is the midpoint between the centerpoints.

 We can use the midpoint formula.

 M = ((x1 + x2) / 2    ,      (y1 + y2) / 2)

 M = ((-2 + 6) / 2     ,    (3 + 9) / 2)

 M = (2, 6)

 These circles will have the same radii.

 If we take the distance between the midpoint and (-2,3), we will have the radius of the circle with this centerpoint.

If we take the distance between the midpoint and (6,9), we will have the radius of the circle with this centerpoint.

Step-by-step explanation:

please help me ! i'm going to fail if i don't answer

Answers

The answer is 49

Hope this helps *smiles*

Which of the following types of angles are NOT congruent when two lines are parallel cut by a transversal?

A. Alternate interior angles
B. Vertical Angles
C. Corresponding Angles
D. Same-Side Interior Angles

Answers

Answer:

Step-by-step explanation:

C

please please please help me with my geometry homework. it needs to be done ASAP​

Answers

Answer:

only give the name to all figure

i need help please Algebra​

Answers

Answer:

the slope of graph 1 is 4 minutes

Solve for m
y - y₁ = m (x - x₁)

Answers

Answer:

m=[tex](y-y_{1}) /(x-x_{1})[/tex]

Step-by-step explanation:

divide the [tex]x-x_{1}[/tex] from the right side to isolate the m.

PLEASE HELP!! ILL GIVE BRAINLY!!!!



Complete the missing parts of the table for the following function.


y=3^x


X| -2 -1 0 1 2 3

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

Y| 1\9 1\? 1 ? 9 ?

Answers

Answer:

which type of question is this dude

Which is another way to write 6-(-7)=13

Answers

6+7=13 is the another way to write ...

hope it is helpful.Thankyou!!!!

what is the answer to x-5y

Answers

x-5y cannot be further simplified unless x and/or y is unknown.

In the case that you know what x is then you can isolate and solve for y, if you know what y is, then it is the other way around.

If you know both of the variables values, then you can simply just replace the variables and solve.

Determine whether the equation x + 4 = x-12 has one solution, no solution, or infinitely many solutions. The equation has​

Answers

Answer:

No solution.

Step-by-step explanation:

x+4=x-12  Subtract x from both sides.

-x    -x

4=-12       This statement is not correct, so there is no solution.

Hope this helps you out and have a great day :)

Answer:

none

Step-by-step explanation:

0=−16

NOW PLS slope intercept form through:(5,4) and (-4,2)

Answers

2-4. -2
——— = ——-
-4-5. -9

what is 5/8 divided by 3/4?

Answers

It is 20/24which you can reduce to 5/6

PLEASE HELP!! I don’t understand.

Answers

Answer:

w ≥ -22

Step-by-step explanation:

- 10 ≤ w + 12

Subtract 12 from both sides

-22 ≤ w

The inequality for w is w ≥ -22

Write a function g whose graph represents a horizontal stretch by a factor of 4 of the graph of f(x)=|x+3|.

g(x)=

Answers

g(x) = |¼x + 3|

Step-by-step explanation:

f(x) = |x+3|

horizontal stretch 4

g(x)

⬇️

g(x) = |¼x + 3|

A function g whose graph represents a horizontal stretch by a factor of 4 of the graph of f(x)=|x+3| will be g(x) = |¼x + 3|

How to find the function which was used to make graph?

A graph contains data of which input maps to which output.

An Analysis of this leads to the relations which were used to make it.

If the graph of a function is rising upwards after a certain value of x, then the function must be having increasingly output for inputs greater than that value of x.

If we know that the function crosses x axis at some point, then for some polynomial functions, we have those as roots of the polynomial.

We have to Write a function g whose graph represents a horizontal stretch by a factor of 4 of the graph of f(x)=|x+3|.

f(x) = |x+3|

Now, horizontal stretch 4

g(x) = |¼x + 3|

Learn more about finding the graphed function here:

https://brainly.com/question/27330212

#SPJ2

Multiply: (2x -6)(x2 + 4x - 2)

Answers

Answer:

2[tex]x^{3}[/tex]+2[tex]x^{2}[/tex]-28x+12

Step-by-step explanation:

what the top person said is right lol hoped this helped:)

Find the circumference of a circle with a radius of 3 feet

Answers

Answer:

18.84ft

Step-by-step explanation:

The formula for circumference is [ C = 2πr ].

= 2π(3)

= 6π

= 18.84

Best of Luck!

( 25 points) I need help with 3 and 4

Answers

Answer:

10,00 for 3.

4. 72

Step-by-step explanation:

Answer:

3) 10,000 stacks

4) 84 inches

Step-by-step explanation:

3)

1,000,000 / 100 = 10,000

4)

7ft x 12in/foot = 84 inches

-4(2x + 1) = - 8x – 2

what is it?​

Answers

Answer:

No solution

Step-by-step explanation:

-4(2x + 1) = - 8x – 2,

-8x - 4 = -8x - 2,

-4 ≠ -2

There is no solution for this equation

Answer:

Unfortunately, there is NO ANSWER!

Step-by-step explanation:Step 1: Distribute

When you do this, you get: [tex]-8x-4=-8x-2[/tex].

Step 2: Add 8x to both sides.

When you do this, you get: [tex]-4=-2[/tex], which is not true, so there is NO ANSWER!

Side note:

It's really easy if you do these steps. If this happens, you always have 0 or 1 answer/result for the variable. Usually, you need to substitute to get the answer.

What is the equation of the line that passes through the point (2, -4) and has a
slope of 2

Answers

Answer:

y = 2x - 8    OR     4 - 2x = -4 - y

Step-by-step explanation:

Use the point-slope form m(x₁-x₂) = (y₁-y₂); m means slope

plug in your numbers:

2(2-x₂) = (-4-y₂)

4 - 2x = -4 - y

or to put it into Y=mx + b:

y = 2x + 8

Question 6 of 10
Gerald has $37 to buy maps for his hiking class. Each map costs $6. How
many maps can he buy? Do not include units in your answer.
Answer here

Answers

6 maps because 6•6 is 36 and he has $37

Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 4, 2, 1, ...

I need the help now ​

Answers

Answer:

geometric with r = [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

An arithmetic sequence has a common difference (d) between consecutive terms

2 - 4 = - 2

1 - 2 = - 1

Then d is not common , not an arithmetic sequence

A geometric sequence has a common ratio (r ) between consecutive terms

2 ÷ 4 = 0.5

1 ÷ 2 = 0.5

Then common ratio r = [tex]\frac{1}{2}[/tex]

Thus sequence is geometric

Share £18 into the ratio 1:5

Answers

Ratio= 1:5
Total parts = 1+5 = 6

1/6 * 18 = £3
5/6 * 18 = £15

How many times does 3 go into 65

Answers

Answer:

21.67 times

Step-by-step explanation:

Answer:

21 with a remainder 6

Step-by-step explanation:

11. The radius and center of circle C are shown. Use 3.14 for 1. Round to the nearest tenth.

Answers

Answer:

11. a) 56.5

11. b) 254.5

Step-by-step explanation:

a). 2 × 3.14 × 9 = 56.52

= 56.5

b). 3.14 × 9^2 = 254.47

= 254.5

Eva spent $48 on a shirt and a pair of pants. The pants cost twice as much as the shirt. How much did each item cost

Answers

Answer:

s=16, p = 32

s is shirt and p is pants.

s+p=48

since the cost of the shirt and the pants together is $48

p=2s

the cost of the pants was 2 times as much as the shirt.

substitute p in s+p=48

s+2s=48

3s=48

divide both sides by 3

s=16

The shirt costs 16.

now substitute 16 in for s in p=2s

p=2*16

p=32

Step-by-step explanation:

Find the 2 consecutive whole numbers?

Answers

Answer:

11 and 12?

Step-by-step explanation:

the square root of 129 is about 11.35

0.7 is one tenths of

Answers

Answer:

The answer is 7

Step-by-step explanation:

Answer:

The answer is 7.

Step-by-step explanation:

hopefully it helps you

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