Solve for x. Show your work: x + 3 = 12

Answers

Answer 1

Answer:

x=9

Step-by-step explanation:

The objective is to get x by itself, so to do that we need to subtract three from both sides:

x + 3 = 12

      -3    -3

12-3= 9.

So, x=9.

Hope this helped!

Answer 2

Answer: x=9

x+3=12

1x+3=12

      -3

   =9

1x =9    --->  1x/1   9/1

/1   /1    --->  1x/1   9/1

x=9

Step-by-step explanation:

sorry if this doesn't make sense


Related Questions

A small lizard 5/8 inch long.a larger lizard is 5 1/5 times as long.how long is the larger lizard??

Answers

Answer:

3.25 inches

Step-by-step explanation:

5/8 = .625

5 1/5 = 5.2

5.2 x .625 = 3.25, or 3 1/4 in

what is the answer ?

Answers

Answer:

b. 5i sqaure root 2

Step-by-step explanation:

first bring out the I then take out the five.

Check all the equations that apply to meet the Segment Addition Postulate in segment OC. OQ=4x+8, QC=2x+1 and OC=46

A. 4x-37=-2x
B. 4x+8-2x-1=46
C. 6x+9=46
D. 6x=55
E. 46+2x+1=4x+8
F. 6x=37

Answers

The answer is C I just finished taking the test

A real number is positive, negative, or zero. True or false​

Answers

Answer:

True

Step-by-step explanation:

.

Anwer is true yea it true

Christina is making a salad for a dinner party with 1.78 pounds of lettuce and 4.36 pounds of tomatoes.
How much more do the tomatoes weigh than the lettuce ?

A 2.58 pounds

B. 3.58 pounds

C. 4.18 pounds

D. 6.04 pounds

Answers

Answer:

A) 2.58 pounds

Step-by-step explanation:

To solve you would have to subtract the pounds of tomatoes from the pounds of lettuce. The equation would look like this,

4.36 - 1.78 = 2.58

Hope that helps and have a great day!

As the exponent on the base 10 increases, does
the standard notation number get larger or
smaller in value? Explain why.

Help Please

Answers

Answer:

Since the exponent on 10 is positive, I know they are looking for a LARGE number, so I'll need to move the decimal point to the right, in order to make the number LARGER. Since the exponent on 10 is "12", I'll need to move the decimal point twelve places over.

First, I'll move the decimal point twelve places over. I make little loops when I count off the places, to keep track:

3.6 _ _ _ _ _ _ _ _ _ _ _ .

Then I fill in the loops with zeroes:

3.600000000000.

In other words, the number is 3,600,000,000,000, or 3.6 trillion

Step-by-step explanation:

When we say exponent on base 10, this is represented mathematically as:

[tex]10^{x}[/tex]

Where:

10 = Base 10

x = Exponent

When the exponent on the base 10 increases, the standard notation number gets larger in value. This is because the exponent is directly proportional to the size of the standard notation of the number.

For example:

[tex]10^{2} = 100[/tex]

[tex]10^{3} = 1000[/tex]

[tex]10^{8} = 100000000[/tex]

To learn more, visit the link below:

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PLEASE HELP!!!! help me solve 4 and 5

Answers

the first one is 87° because they are corresponding angles

The second one is 93° because they are same side interior angels

Answer:

1 is 87 and 2 is 93

Step-by-step explanation:

idrk exactly how to explain it....but i'll try....

the 87 is part of a straight angle, so the one to the left of it, that angle is 93.

1 is diagnoly oppisite of the 87, so 1 is 87. 2 is diagnoly oppisite of the other part of the striaght angle(93), so its 93

Ernie went to see some friends in San Antonio 240 miles away. It took him 3 hours to get there. What was his average speed?

Answers

Answer:

Find out yourself buddy XD

Answer:

his average speed was 60 miles per hour

Step-by-step explanation:

their are three ways to get the answer

1. if you take the 0 away from 240 it becomes 24, and 24 divided by 3 = 6 add the the 0 back in and you get 60.

2. 240 divided by 3 = 60

3. Use a calculator

a counselor charges a client $110 for 4 hours of therapy. how much does the counselor earn per hour

Answers

$27.5 per hour .......

What does the word “change “ tell you to do in “keep change flip” for dividing fractions? A) change the sing to multiplication b) change the sing to addition c) change the first fraction d) change the second fraction

Answers

Answer:

A

Step-by-step explanation:

Multiply by the reciprocal, also sometimes referred to as "Keep, Change, Flip." Here is how it works. You rewrite the division question as a multiplication question by flipping the second fraction over. Next, keep the first number, change the division to multiplication and then flip the second fraction over.

Answer:

d change the second fraction

Step-by-step explanation:

i dont know how to explain it but yeah

The equation of a line is y = -3x – 2. What are the slope and the y-intercept of the line?
A.
slope = -3 and y-intercept = 2
B.
slope = 3 and y-intercept = -2
C.
slope = 3 and y-intercept = 2
D.
slope = -3 and y-intercept = -2

Answers

D, slope=3x and y-intercept =-2

The slope of the line is - 3 and the y - intercept of the line is - 2.

What is Equation of line?

The equation of line passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;

y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The equation of line is,

⇒ y = - 3x - 2

We know that;

The slope - intercept form of the equation of line is,

⇒ y = mx + b

Where, m is slope and b is y - intercept.

So, By comparing we get;

The slope (m) of the line = - 3

And, the y - intercept of the line = - 2.

Learn more about the equation of line visit:

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Is 59 - - 2 positive or negative?

Answers

Answer:

Its positive becuse both signs get multiplied.

Step-by-step explanation:

PLease mark me brainliest

59+2
Pls mark me brain

is this reasoning inductive or deductive? explain why.

1. all pennies are copper. if your friend gives you a penny, you conclude that the penny is copper colored.

2. all even numbers are divisible by 2. 28 is even. therefore, 28 is divisible by 2.

please help me out with this and also include reasoning! thank you so much!

Answers

Answer:

No. 1 is inductive, cos the evidence is based on proberbility as not all pennies are silver color, since thier color could change over time (fade)

while

No 2 is deductive since all even numners are divisible by 2, there is a full assurance of the outcome.

Answer: The reasonings are deductive. They tried to do a trick question I think.

Step-by-step explanation: There both deductive because the first sentence has a key word which is Conclude. The word might not seem to matter until you look up what  deductive means. Deductive and Inductive are different because one is specifics observation and then draw a conclusion and the other is specifics conclusion  follows a general theory. And the key word in deductive is conclusion in the first sentence it says that you conclude. Deductive means a conclusion that follows a general theory. The deductive is following a general theory which means if the facts are right then the conclusion should  be right. The deductive makes sense in the first because if the facts that all the pennies are copper is true then the penny your friend gave you should be copper. The second sentence same thing if the fact was right then any number that is even can be divisible by 2. So deductive makes sense in both sentences. Inductive makes sense it inside one on the sentences not both. Inductive makes sense inside the first because the person could have seen that the pennies were all made of copper. i think that it being deductive is a better choice that inductive and if you still are confused you can look up "difference between inductive and deductive reasoning" and go to images it should have a blue and pink picture of the definition of them. Sorry I wrote it so long you can just shortened it down for the answer.

Hello, I need help on these math questions:



Thank you very much!

Answers

chile, u forgot to insert the picture..

I’ll give the Brainliest to who answers these questions first.

Brock has $3084 in his checking account. He wrote checks for $350 for rent, $275 for auto repair, and $169 for a loan payment. Find the amount remaining in his account. Explain.


Linda’s pay check was for $2312. She spent $157 on rent, $322 on food, $478 on child care, $234 on transportation, and $290 on other things. She put the rest of her pay check in savings. How much did she put in savings? Explain.

Answers

Answer:

the amount remaining in brocks checking account is $2290. 3084 - 350 - 275 - 169 = 2290

Linda has $831 in her savings. 2312 - 157 - 322 - 478 - 234 - 290 = 831

Answer:

the amount remaining in Brocks account is 2,290

the amount remaining in Linda's is 353

Step-by-step explanation:

i found the amount by Subtracting

What is 1.425 as a fraction in simplest form?

Answers

Answer:57/40.1.425%.A Brainliest please.

Answer:

57/40 is the correct answer to this question

What is -6 x -4 ?

sorry i suck at math

Answers

Answer:

24

Step-by-step explanation:

Negative × negative = positive-6 × -4 = 24

I hope this helps!

Answer:

+ 24

Step-by-step explanation:

[tex] - 6 \times - 4[/tex]

6×4= 24

(-)×(-) = (+)

[tex] + 24 \: or \: 24[/tex]

i will give you brainlliest and will give you some points
What is the value of 7 - 3 3 ÷ 9 + (-8 - 2)?

-3
-8
-6
-2

Answers

Answer:

-6 is the correct answer

An observation deck extends 198 feet above a valley the Dexys 148 feet above the valley floor

Answers

Answer:

198+148=346

All you have to do is add them together

Which statements about density curves are true? Check all that apply.
The mean of a density curve is indicated by X.
The mean of a density curve is indicated by u.
The standard deviation of a density curve is indicated by o.
The standard deviation of a density curve is indicated by Sx.
The density curve can be above and below the x-axis.

Answers

Answer:

The mean of a density curve is indicated by µ.

The standard deviation of a density curve is indicated by σ.

This is the answer Egde 2020

The statements which are true about density curves is the mean of a density curve is indicated by u and the standard deviation of a density curve is indicated by Sx.

What is a density curve?

The density curve is a way of representation of numerical distribution data in graphical manner, where the outcomes are continues. The density curve can not be below the x-axis or horizontal line of the graph.

In a density curve,

The mean of a density curve is indicated by μ (mu).The standard deviation of a density curve is indicated by Sx.The density curve can only be above x-axis and not below it.

Thus, the statements which are true about density curves is the mean of a density curve is indicated by u and the standard deviation of a density curve is indicated by Sx.

Learn more about the density curve here;

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help pls i wil give brainliest

Answers

i’m think it’s B cause that’s the only one that makes sense to me..
I think the answer is b

A teacher takes 5 children on a field trip to a geological museum. As a souvenir, the group receives a bag of stones. When the teacher divides the stones evenly among the children, each child receives exactly 24. If 6 children had been present, how many stones would each child have received?

Answers

Answer:

20

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

You do 24 times 5 to find out how many stones were in all. Which is 120. Then you take 120 and divide it by 6 students which is 20.

Nadine made 16 cups of punch for a class party. One serving is 1/2 cup. How many servings of punch did Nadine make

Answers

Answer:

16.5

Step-by-step explanation:

16+1/2

y varies directly with x if y= 4 when x= -1 what is the value of x when y = 6

Answers

Answer:x=-(3/2)

Step-by-step explanation:

y=kx (y=4,x=-1)

4=k(-1)

k=-4

y=6 x=?

6=kx

We know k = -4

6=-4x

x=-(3/2)

What is an equation that goes through (12, 5); m = -3
Please help

Answers

Answer:

Step-by-step explanation:

Use this formula:

y - y1 = m ( x - x1 )

We are told m = -3 and given the point (12 , 5) ---- > so x1 = 12 and y1= 5

Put these values into the formula above and you get:

y - y1 = m ( x - x1 )

y - 5 = -3 ( x - 12 )

y - 5 = -3x + 36

y = -3x + 36 + 5

y = -3x + 41

he sum of four consecutive odd numbers adds up to 272. What is the smallest of these four numbers?

Answers

65

65+67+69+71 equals 272

If LN=6x-35 and MN=19 and LM=5x-9,find x.

Answers

The answer is x=45. Hope this helps!

Does anyone know how to solve this 5x(x+4)^2-2y^5 x=-3 and y=-2

Answers

It’s 49.
5(-3)(-3+4)^2 -2(-2^5)
5(-3)x 1^2 +2^6
5(-3) x 1 +64
-15+64
=49

Answer:

49

Step-by-step explanation:

What is the slope in the line shown below.

Answers

Answer:

C

Step-by-step explanation:

M=y2-y1/x2-x1

1-3=(-2)

3-(-4)-7

M=(-2)/7

Hope this helps =3

A restaurant serves sandwiches and salads. They sold 14 sandwiches and 14 salads for a total of $280 for lunch. In the evening, 42 sandwiches and 154 salads were sold for a total of $1400. How much does each sandwich cost?

Answers

Answer:

33.3

Step-by-step explanation:

1400 divided by 42

Answer:

$33.30

Step-by-step explanation:

1400 divided by 43 = 33.3

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