Three times a number, minus 7, is equal to two times the number, plus 8. Find the number.

Answers

Answer 1

Answer:

x = 14

Step-by-step explanation:

Answer 2

Answer:

x=15

Step-by-step explanation:

3x-7=2x+8

3x15=45-7=38

2x15=30+8=38

38=38


Related Questions


Simplify:
3 (2x - 4)

Answers

Answer:

Step-by-step explanation:

Someone please help me will mark BRIANLIEST

Answers

1. 44/100=176/400=220/500
2. 5/7=10/14=30/42
3. 7/9=35/45=49/63
4.3/6=9/18=6/12
5. 2/3=20/30=8/12
6. 2/8=4/16=14/56
7. 1/5=8/40=4/20
8. 43/50=344/400=215/250
9. 1/2=7/14=6/12
10. 1/5=7/35=2/10
11. 5/10=25/50=50/100
12. 1/4=3/12=2/8

Miguel is reading a 338-page book. In the first 40 minutes he spends reading, he reads 52 pages. If he continues reading at the same rate, how many minutes will it take him to read the entire book?

Answers

Answer: 260 minutes.

Step-by-step explanation:

This represents the ratio between the minutes he reads and the pages he reads: 40 : 52

The book Miguel is reading is 338 pages long. Miguel also reads 52 pages in 40 minutes. You can divide 338 by 52, which is equal to 6.5.

If it takes Miguel 40 minutes to read 52 pages, then we can multiply that by 6.5. 40 x 6.5 = 260.

In conclusion, it will take Miguel 260 minutes to read the entire book, or 4 hours and 20 minutes.

Answer:

260 minutes

Step-by-step explanation:

40:52

x:338

338*40=52x

13,520/52

260:338

Simplify: (4 – 5) – (13 – 18 + 2).

Answers

Answer:

2

Step-by-step explanation:

(4 - 5) - (13 - 18 + 2)

According to PEMDAS, we should simplify the parentheses first.

= (-1) - (-3)

When you subtract a negative number, you are actually adding.

= -1 + 3

Now, add.

= 2

Hope this helps!

how much does one cup of coffe cost? 8 cup of coffe for $28

Answers

Each cup of coffee cost’s 3.5 each

Answer:

it cost rs 3.5 dollar thank you

What’s the answer??????

Answers

Answer: -50

Step-by-step explanation: (5-10) then multiply the answer by 10

Which value of y makes the equation below true?
−4(y+2)−6(y−3)=12
A y=−19/5

B y=−1/5

Cy=−13/10

D -y=−11/5

Answers

Answer:

B

Step-by-step explanation:

-4y-8-6y+18=12

-10y=12+8-18

Y=-1/5

Which set of ordered pairs represents a function
1) {(0,4)(2,4)(2,5)}
2){(6,0)(5,0)(4,0)}
3){(4,1)(6,2)(6,3)(5,0)}
4){(0,4)(1,4)(0,5)(1,5)}

And the other one I put a picture of but I don’t know if it worked lol

Answers

Question 2 is B and question 3 is “3”.

In both examples, the “x’s” are never repeated!! Each x is unique. As soon as you have two x values with DIFFERENT y values, it is no longer a function

Amos scored 100 points while playing 3 rounds of a game.


Points
Round 1 - 30
Round 2 - 25
Round 3 - ?
Total - 100

How many points did he score in round 3?

Complete the steps to solve the problem.

1. What do you need to solve for this problem? Choose a variable to represent this unknown value.

2. Using the variable you chose, write an equation to represent this situation. (Hint: You may want to put the number of points in each round on one side and the total number of points on the other.)

3. Solve this equation to find how many points Amos scored in round 3. Show your work.

Answers

1. We can subtract the scores of the first and second rounds from the total score to obtain the score in the third round.

2. An equation including a variable to solve would be x + 30 + 25 = 100.

3. By solving the equation we obtain Amos scored 45 points in the third game.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

From the given information the score for her third round would be,

= (100 - 30 - 25).

= 100 - 55.

= 45.

Another way to solve this problem is assuming Amos scored 'x' in the third game.

Therefore, (30 + 25 + x) = 100.

55 + x = 100.

x = 100 - 55.

x = 45.

learn more about numerical expressions here :

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9) using opposite operations, solve for m

4m+8=12

Answers

Answer: 1

Step-by-step explanation:

4m + 8 = 12

=> 4m = 4

=> m = 1

Answer:

Subtract 8 from both sides now your left with 4m and 4. Divide 4 from both sides to get 1. 1 is your answer

Is the relationship between the number of tickets sold and the number of hours proportional? If so, how many tickets were sold in 8 hours?

Answers

Answer:

Answer: Yes, the amount of money is proportional to the number of hours worked because there is a number.

Step-by-step explanation:

Solve the inequalities by graphing. Select the correct graph. y> X y<-X​

Answers

Answer:

i think is y>X

Step-by-step explanation:

mmmmmm u should help -9/14+ 2/7

Answers

Answer:

0.9285714285714 is the answer.....

I need the answer to this plzzzz

Answers

Gianna worked for 5 hours
Matthew work for 6 hours

Evaluate the expression for the given value of x.
f(x) = { (2)" ; x = 0

Answers

Answer:

2

Step-by-step explanation:

substitute the given value into the function and evaluate

Find the coordinates of the midpoint of AB.'
4. A(7,-4), B (5,2)
5. A(-3, -2), B (9,6)

Answers

Answer:

4. (6,-1) 5. (3,2)

Step-by-step explanation:

Find Sin D and sin E! Write the answer as a fraction and as a decimal. Round to four decimal places, if necessary! Please help me!

Answers

Answer:

sine D = 0.9459

sine E = 0.3243

Step-by-step explanation:

Mathematically, sine is the ratio of the opposite to the hypotenuse

The hypotenuse is the longest side and we have it as 37 in the diagram given

the opposite to angle E is 12

So the sine of E = 12/37 = 0.3243

For D , its opposite is 35

The sine of D = 35/37

sine of D = 0.9459

Miles eats 72 Spicy Wings in June. He then eats 504 Spicy Wings in October! What is the percentage increase of the wings he has consumed between June and October?

Answers

Answer:

700%

Step-by-step explanation:

504/72 = 7

7 * 100 = 700

Multiply (3x + 2) (4x-5)

Answers

Answer:

12x^2-7x-10

Step-by-step explanation:

I did binomial into binomial method

3x(4x-5)+2(4x-5)

12x^2-15x+8x-10

12x^2+(-15+8)x-10

12x^2-7x-10

The answer is 12x^2-7x-10

Evaluate -20a - 65 for a = 2.7

Answers

Answer:

-119

Step-by-step explanation:

Substitute a for 2.7 since a = 2.7

Then multiply -20 by 2.7 = -54

Next subtract -54 by 65

Finally, you have your answer!

How do you find the x intercept and y intercept on a graph and when given an equation?

Answers

Answer:

In a graph, the x-intercept will be the point in which the line crosses the horizontal line of the plane.

The y-intercept is found when the line crosses the vertical line of the plane.

In an equation, y = mx + b, the y-intercept is the value of b, and the x-intercept is shown when y = 0. (substitute y for 0 and find the value of x)

Diane left her house and traveled at a constant rate of 55 miles per hour for 4 hours. How far did she travel?

Answers

Answer:

220 miles

Step-by-step explanation:

55 x 4 = 220 miles

Answer:220

Step-by-step explanation:

55×4=20

What is 15/20 closest to 0,1/2 or 1

Answers

Answer:

0.07 (7/100) is closer to 0.

1.150 (1150/1000) is closer to 1.

0.391 (391/1000) is closer to 1/2.

0.0999 (999/10,000) is closer to 0.

0.99 (99/100) is closer to 1.

0.599 (599/1000) is closer to 1/2.

Put everything as a fraction. The first spot after the decimal means you put the number over 10, the second place means you put it over 100, the third 1,000, fourth 10,000 and so on. Hope I helped! ^^Step-by-step explanation:

The closeness of the given function is found to be by writing it in the simplest form as 1.

What is a fraction?

A fraction is a number written in the form a / b, where a and b are integers and b ≠ 0.

The number a is called as the numerator and b is the denominator.

The given fraction is 15/20.

It can be simplified as below,

Divide numerator and denominator by the common factor 5 as,

(15 ÷ 5)/(20 ÷ 5)

⇒ 3/4

The given fraction 3/4 is greater than zero and closest to 1.

Hence, the given fraction is closest to integer 1.

To know more about fraction click on,

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PLZZ HELP WILL GIVE BRAINLIEST

Answers

Answer:

x=2 y=4

Step-by-step explanation:

Answer:

(2,4)

Step-by-step explanation:

substitute the [tex]y = 2x[/tex] for the [tex]y[/tex] in [tex]x = -y + 6[/tex]

[tex]x = -(2x) + 6[/tex]

[tex]x = -2x + 6[/tex]

[tex]3x = 6[/tex]

[tex]x = 2[/tex]

next take [tex]x = 2[/tex] and input it into [tex]y = 2x[/tex]

[tex]y = 2(2)[/tex]

[tex]y = 4[/tex]

so if [tex]x =2[/tex] and [tex]y = 4[/tex], the ordered pair solution is:

[tex](2,4)[/tex]

pls help (ZOOM IN TO SEE FULL PIC)

Answers

Answer: 15

Step-by-step explanation:

Lets name the missing point as "x"

8^2 + x^2 = 17^2

=> 64 + x^2 = 289

=> x^2 = 289 - 64

=> x^2 = 225

=> x = 15

Hello, if you know the answer, please explain how you got the answer to this

Answers

Answer:

b

Step-by-step explanation:

because the bottom part of the triangle shrunk by 4

Hello, It’s B yea a I belive it’s B

Can somebody plz help answer these questions correclty (Like what the letters equal) thanks :D

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DD

Answers

Answers:
20: 24
21: 21
22: 20
23: 12
24: 8

Why?
24/4=6
31/7= 3
20/5= 4
12/6=2
8/4= 2

Hope this helps :D

Answer:

20. multiply both sides by 4, x= 24

21. multiply both sides by 7, y=21

22.multiply both sides by 5, z=20

23. multiply both sides by 6, p=12

24. multiply both sides by 2, r=8

Step-by-step explanation:

you want to get the variable alone (x,p,y, etc).

so if you are dividing the variable by a number you want to take the denomentator and multiply it by itself and then you have to multiply the same number to the number on the other side of the equation.

o curso de inglês de Carolina teve duração de 4 semestres e 2 meses . quantos tempo durou esse curso de Carolina ?

a 26 meses
b: 24 meses
c : 22 meses
d: 20 meses​

Answers

Answer:

a 26 meses gracias por los puntos

riddle: there are 10 copy cats in a window how much are left. Cation this is math!!!

Answers

Answer:

20 cats

Step-by-step explanation:

ez lol

Answer:

i dont know 10

Step-by-step explanation:

Pls help
My teacher rlly tried to make it fun like girl nah it’s still hella boring

Answers

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