A number is doubled and then increased by seven. The result is fifty-one. What is the original number?

Answer:

6.03, 6.2, 6 2/5, 61/3

Step-by-step explanation:

6.03

6 2/5 = 6.4

6.2

61/3 ≈ 20.33

Answer:

3x was subtracted from the left side, but 3x was subtracted from the right side. The Subtract Property of Equality states that you can subtract the same number from each side and the equation will remain true. But 3x and 3 are not the same number (unless x is 1).

x = -8/5

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Subtract 12 from both sides.

Step 3: Divide both sides by 10.

9514 1404 393

Answer:

Step-by-step explanation:

You answer this sort of question by comparing each line to the line above to see what the differences are. In the second line, the term 3x is missing from the left side of the equal sign, and the value 5 has been changed to the value 2 on the right side. The wording of the statement you're to fill in tells you that it should read ...

  3x was subtracted from the left side, but 3 was subtracted from the right side.

  ... 3x and 3 are not the same number (unless x is 1 .)

__

The correct solution is ...

  7x +21 +3x = 5 . . . . . . given

  10x +21 = 5 . . . . . . . . . collect terms

  10x = -16 . . . . . . . . . . . subtract 21 from both sides

  x = -1.6 . . . . . . . . . . . .  divide both sides by 10

_____

Additional comment

It can often work well to "read ahead" when answering a question or series of questions. The later questions or comments often provide clues that help you understand how to answer the earlier questions.

Here, for example, it becomes clear that 3x and 3 were subtracted from the different sides of the equation. You can find that out simply by reading the rest of the statement you're to fill in. These are the answers to the questions asked in the first part of the statement.

Answer:

Thank you for being so kind! X=15

Step-by-step explanation:

each expression combined is equal to 180.

so you must put 5x+9+7x-9 and solve to get 15!

Answer:

[tex]\sqrt{4x^2}=2|x|[/tex]

Step-by-step explanation:

We are given the radical [tex]\sqrt{4x^2}[/tex] and we have to simplify it down as much as possible.

We first will have to find out what numbers are inside the square root, we can see that there is a 4 and an [tex]x^2[/tex], of which both can be taken out of the square root by simplification.

The square root of 4 is 2, and the square root of [tex]x^2[/tex] is [tex]x[/tex].

Due to how radicals work, we have to multiply 2 and [tex]x[/tex], but before that, we have to preserve how the radical was beforehand. We know that a radical cannot have a negative radicand, and due to that we must add absolute value to keep the equation's original status the same.

To sum it all up, our answer is [tex]2|x|[/tex], due to us simplifying it down, and applying absolute value to preserve the answer before it was simplified.

Cheers!

Answer:

1st row 3 down

Step-by-step explanation:

Answer:

Step-by-step explanation:

PLATO

Answer:

104 = 10,000 x 3.32 = 33,200

Step-by-step explanation:

hope this helps

Hello There!

When we are writing numbers in scientific notation, we must make sure that the coefficient is between 1 and 10:

3.32x10^4

Hope this helps!

All the best! :)

[tex]GraceRosalia[/tex]

The answer is [tex]2\frac{3}{4}[/tex] more gallons

Answer:

There are no mistakes

Step-by-step explanation:

I did the assignment

Answer:

The answer is what I assume to be C. If two parallel lines are cut by a transversal, the corresponding angles are congruent

Step-by-step explanation:

Where is the image for this?

Hope this helped. ;)

Step-by-step explanation:

hi if you don't know a answer for a question you can use the app called.... maths scanner

Answer:

Step-by-step explanation:

Let the average speed on the level road was x.

Then the average speed on the winding road was x - 20.

The total distance is:

Answer:

313

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

120

Step-by-step explanation:

There are 5 different ways to put the first book

Now there are 4 books left

There are 4 different ways to put the second book

Now there are 3 books left

There are 3 different ways to put the third book

Now there are 2 books left

There are 2 different ways to put the fourth book

Now there are 1 book left

5*4*3*2*1

120

Sum is addition.

Twice Jenny’s age would be multiplying her age by 2.

Answer: 13 + 2j

Answer:

40 + b

Step-by-step explanation:

40 more than b = 40 + b

Answer:

6

Step-by-step explanation:

C=.10t+4

C=.10(20)+4

C=2+4

C=6

Answer:

1/4

Step-by-step explanation:

Answer: 1 problem per day

Step-by-step explanation:

m/5 problems completed in 5 days.

substite m with 5 because 5 days

5/5

5/5=1

Therefore Jack solved 1 question per day.

The number of problems Jack solve per day is 4 problems.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

We are given that;

Number of days= 5days

Now,

To find how many problems Jack solved per day, we need to divide the total number of problems by the number of days. This is because he solved the same number of problems every day. So, we can write an equation as:

m / 5 = p

where m is the total number of problems and p is the number of problems per day.

To solve for p, we need to multiply both sides of the equation by 5 and get:

p = m

This means that Jack solved m problems per day.

For example, if m = 20, then Jack solved 20 / 5

= 4 problems per day.

Therefore, by algebra the answer will be 4.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ2

Answer: 42 inches

Step-by-step explanation:

a+b+c=perimeter

12+14+16=42 inches

Perimeter of the triangle = (12 + 14 + 16) inches

= 42 inches

Answer: 1,409.737566825

1.785 * 789.768945 = 1,409.737566825

Step-by-step explanation:

Answer:

D = 96  

K = 96 x 4 = 384

A= 4

Step-by-step explanation:

Deshaun = 96

Kevin = 96 x 4 = 384

Ashely = 384 /  96 = 4

Answer:

its answer is the same as the top, s³+12

8 × 4× 8 = 256

12 × 12 × 12 = 1,728

256 + 1,728 = 1,984

total volume is: 1,984

Answer:

157

Step-by-step explanation:

157 would be you're asnwer

please tell me If u got u right or if its incorrect

Answer:

y = 4x + 17

Step-by-step explanation:

y = 1 - 1/4x = - 1/4 x + 1 .... slope -1/4

perpendicular line slope = - (1 / (-1/4) = 4

pass (-3,5): (y-5) / (x - -3) = 4

y-5 = 4x + 12

y = 4x + 17

Answer:

y=3x+10

Step-by-step explanation:

7-16=-9

-1-2=-3

-9/-3=3

m=3