Solve for x. Show each step of the solution.
2.5(4-x)+12=21-4(2.5x+7)

Answers

Answer 1

Answer:

x=-58/15

Step-by-step explanation:

distribute first 10-2.5x+12=21-10x-28

Simplify(add the numbers) 22-2.5x=-7-10x

move the variable to the left side 22-2.5x+10x=-7

move the constant to the right side -2.5x+10x=-7-22

simplify like terms 7.5x=-29

divide by 7.5                       x=-58/15

alternate forms are x=-3 13/15                or  x=-3.86


Related Questions

Solve for x... please help ASAP

Answers

Answer:

The answer would be -11

Step-by-step explanation:

The 2 angles in this problem are vertical angles. This means the angles and congruent(=). so 6x+185=8x+207 ----- 2x=-22---------- x=-11

Hope this helps!

Helppppppppppppppppppppppppppppppppppppppppp pls

Answers

Answer:

Coffee Beans to Go is cheaper, selling coffee at $4.75 per pound.

Step-by-step explanation:

The graph is cruddy and hard to see but! when you go to 2 pounds and then up the the cost, it's $9.50. 9.50/2= 4.75. kapeesh??

Below are two parallel lines with a third line intersecting them.
20
93°

Answers

Answer:

x is 93 degrees

Step-by-step explanation:

They both are in the same place. If you were to cut the lines in half vertically through the center and over layed them they would be the same angle measure.

80°
50°
Зc +2°
C=.

Can i get a step by step or a video on this?

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

In the given figure, let the third angle of the triangle be x

From Angle sum property of a triangle, we know that :

x + 80° + 50° = 180°

x + 130° = 180°

x = 180° - 130°

x = 50°

so, the third angle will be 50°

and as we can observe here, the third angle of the triangle is equal to (3c + 2)° by vertical opposite angle pair.

so,

3c + 2° = 50°

3c = 50° - 2°

3c = 48°

c = 48° ÷ 3

c = 16°

hence, value of c = 16°

Solve the proportions 1/8 = 7/2h

Answers

1/28 if this helped please mark me the brainiest :)

Solve this problem. PLEASE HELP!!

Answers

9514 1404 393

Answer:

  (b)  3 cups

Step-by-step explanation:

One recipe uses 6 oz of orange juice. Multiplying the quantity by 4 means ...

  4 · 6 oz = 24 oz

of orange juice is needed. There are 8 oz in 1 cup, so this amount is ...

  (24 oz)/(8 oz/cup) = 3 cups

To make quadruple the recipe, 3 cups of orange juice are needed.

What is an equation of the line that passes through the point ( − 3 , − 1 ) and is perpendicular to the line x − 2 y =6

Answers

Answer: y = -2x - 7

Step-by-step explanation:

The equation for a perpenducular line has a slope that is the negative inverse of the reference line, in this case x - 2y = 6.

Let's put this equation into standard slope-intercept form, y = mx+b, where m is the slope and b the y-intercept (the value of y when x is 0).

x - 2y = 6

- 2y = 6 - x

y = (1/2) x -3

The slope is (1/2), so a perpendicular line will have a slope of -2.

y = -2x + b

We can find b by using the given point ((-3,-1), a known solution):

-1 = -2*(-3) + b

-1 = 6 + b

b = -7

The perpendicular equation is y = -2x - 7

y = -2x

Find the area of the figure. (Sides meet at right angles.)
4 ft
5ft
4 ft
9ft
8 ft

Answers

Answer:

52 square feet.

Step-by-step explanation:

length*width=area

Top rectangle = 4ft*5ft = 20sq.ft

Bottom rectangle = 4ft*8ft = 32sq. ft

20+32=52 sq.ft OR (4*5)+(4*8)=52sq.ft

a janpanese chin is a small dog that weight 7 pound how many ounces is 7 pounds

Answers

Answer:

112 ounces

Step-by-step explanation:

1 pound = 16 ounces

We are converting 7 pounds to ounces

7 × 16 = 112

What is the equation of the linear model in point-slope form that includes the point (-3, 1) and has a slope of 3?
Please show work for brainliest

Answers

Answer:

A) You would use the two points that are closest to the graphed line

(2,7) and (8,13)

B) Slope = change in Y over the change in X:

Slope = (13-7) / (8-2) = 6/6 = 1

Slope = 1

c) Point slope is written as y -y1 = m(x-x1) where m is the slope y1 is the first Y value and x1 is the first x value.

Equation is: y-7 = x-2

d) To rewrite y -7 = x-2 in slope intercept form, you need to isolate y.

To isolate Y add 7 to both sides:

y = x +5

Step-by-step explanation:

The equation of line which passes through point (-7,-2) and having slope 3 is y = 3x + 10.

What is Algebraic expression ?

Algebraic expressions are numbers expressed using letters or alphabets without specifying their values. Algebra taught us how to express unknown values using letters such as x, y, and z. There can also be a single value that is placed before and multiplied by a variable in an algebraic expression in addition to these letters, which are called variables.

Here, it is given that line passes though point (-3,1) and having slope of 3.

Now, Let us find the equation of the line using point-slope equation of line :

(y-y₁) = m(x-x₁)

Substituting all the values in above equation to get the equation of line :

(y-1) = 3(x-(-3))

y -1 = 3x + 9

y = 3x + 9 + 1

y = 3x + 10

Therefore, the equation of line which passes through point (-7,-2) and having slope 3 is y = 3x + 10.

check and know more about line here :

brainly.com/question/14914699

#SPJ5

what is the distance between each pair of points. round to the nearest hundredth

(-8, -2) and (6, -1)

Answers

Answer:

square root of 197

Step-by-step explanation:

PLEASE HURRY!!!
Wendy mixed 5 parts of orange juice and 2 parts of water to make a drink. How many parts of orange juice did Wendy mix with each part of water?

A. 2/5
B. 5/7
c. 7/5
d. 5/2

Answers

Answer:

2/5

Step-by-step explanation:

You have to divide 2 by 5! Which equals 4/10 then simply to 2/5!

HELP….ILL GIVE BRAINLIEST

tickets to an all star game cost $ 3 dollars a child 5 for an adult 90 tickets were sold and 328 dollars were made.how many of each ticket were sold

Answers

Answer:

Step-by-step explanation:

The answer is 65 adults and 1 child

We have to multiply enough to get 328

So 5x65=325

1x3=3

In other words

65 times $5 = $325

1 time $3= $3

= The total amount sold of $328

This is due in 20 minutes, help, please.
Sergio spent $65 at the gas station. He paid $3 per gallon for gas and $7 on candy and soft drinks. How many gallons of gas did Sergio buy?

Write a algebraic equation for the word problem above.

Question 1 options:

3 + 7 + g = 65


65 + g = 7


7g + 3 = 65


3g + 7 = 65 (What I chose)

Question 2

Write an algebraic equation for the word problem below.

How old am I if 226 reduced by three times my age is 133?

Question 2 options:

3a - 226 = 133


226 - 3a = 133 (My answer)


133 - 3a = 226


3a - 226 = 133

Question 3

rite an algebraic expression for the word problem below.

The sum of three consecutive numbers is 72. What are the three numbers?

Question 3 options:

3n = 72


1 + 2 + 3 = 72


a + b + c = 72


n + (n + 1) + (n + 2) = 72 (My answer)

Question 4

Write an equation for the word problem below.

It costs $5 plus $2 per mile to ride in a taxi. Hannah took a taxi from her house to school this morning. She paid the taxi driver $25 when she got to the school. How many miles is it from Hannah's house to her school?

Question 4 options:

2m + 5 = 25


5m - 2 = 25


25 + 2m = 5


5m + 2m = 25 (My answer)

Question 5 (Unsure if I'm correct)

rder the steps for writing an algebraic equation from real life word problems.

Question 5 options:

2
Identify all the important information

3
Define the variable

4
Write an equation using the important information and the variable

1
Read through the entire problem

Answers

Answer:

1) You were right

2) Also correct

3) Again, correct

4) Wrong, the correct answer is 2m + 5 = 25

5) Correct

Step-by-step explanation:

1) Sergio spent a total of 65 dollars at the gas station. He spent 3 dollars per gallon and 7 on snacks.The equation will be:

3g + 7 = 65

2) 226 reduced by ( - ) 3 times your age ( 3a ) is ( = ) 133?

226 - 3a = 133

3) The sum of three consecutive numbers is 72.

n + ( n + 1 ) + ( n + 2 ) = 73

4) It cost 5 plus 2 per mile.The total spent was 25

2m + 5 = 25

5)

1. Read the entire problem.

2. Identify all the important info.

3. Define the variable

4. Write an equation using the important information and the variable

2. Given f(x) = -2x2 - 5, find f(-4).

Answers

Given the function, f(x) = -2x^2 - 5: to evaluate f(-4), you must substitute the value of x = -4 as input into the function.

f(x) = -2x^2 - 5

f(-4) = -2(-4)^2 - 5

f(-4) = -2(16) - 5

f(-4) = -32 - 5

f(-4) = -37

Therefore, f(-4) = -37

Please mark my answers as the Brainliest if you find my explanations/solution helpful :)

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

C

Step-by-step explanation:

because it's less than or equal too

The graph of a linear function f passes through the point (3, -10) and has a slope of -5. What is the zero ?
A. 1

B. -1

C. 5

D. -5

I really need help

Answers

Answer:

C

Step-by-step explanation:

i did it already

Please help me ASAP!!!!!!!

Answers

hgjjvbhkml

Step-by-step explanation:

what the ratio to 7 to 1 written in 3 different ways

Answers

Answer: 7:1, 7/1, 7 to 1 (according to school learning)

Step-by-step explanation:

first 7:1 second 7/1 third 7 to 1

solve the formula for the specified value

v=1/3 bh

solve for b ​

Answers

Answer:

The choice a.

[tex]B = \frac{3v}{h} [/tex]

Step-by-step explanation:

[tex]v = \frac{1}{3} Bh \\ \\ v = \frac{Bh}{3} \\ \\ Bh = 3v \\ \\B = \frac{3v}{h} [/tex]

I hope I helped you^_^

Hello, please help :) It’s about tables, I have ADHD trouble understanding as well (Please give explanation so I can understand)

Answers

a. 240 - 144 = 96 Adult males

260 - 129 = 131 Female children

b. 275-225 = 50 more children

c. 225/500 simplifies to 9/20 visitors are adults

d. 240:260

e. 144/500 chance that it is a male child

Okay so for a number 1 they want you to subtract the total from the child or adult. so for males, they want you to subtract 240 from 144. 240 - 144 equals 96 so there are 96 adults in males. moving on to the female we have to find how many children there are so, we have to subtract 260 from 129 which will equal 131. 131 is how many children are females.

For "B" we have to work out how many child visitors there are than adults. Easy we just have to subtract 275 from 225 which will equal 50!

Now for question C, we have to write the adult total in the lowest term what they mean by that is a fraction said to be written using the lowest terms if its numerator and denominator are relatively prime, that is, they have no common factors other than 1. So the lowest term for the adult is 9/4

Now for question D, they want us to make a ratio for the number of males and for the number of females. A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. The ratio for the male is 96:144 (for every 96 adults there are 144 children) The ratio for females is 129:131 (for every 129 female there are 131 children)!

For E it is a probaIlity that there is a 144/500 chance there's a male child! Not much I can explain for E because that's a hard one but that's the answer for E

120% of what number is 102 and how do you write the question? (Include a variable)

Answers

Answer:

y = 85

Step-by-step explanation:

120% times y = 102

That's how you write the equation.

Apps L4L Bookmarks
Reading
100%
Use the information to answer the question.
The graph of a linear system is shown
9
8
7
6
3
21
910
What is the solution to this linear system? Enter a value in each box to create an ordered pair.
SRESET
Jasmine McElroy, ID#***11
Growth: Math 6+ CA 2010
Question # 33

Answers

Answer:

(2, 7)

Step-by-step explanation:

The answer is (2,7)
you find the answer by finding where the two lines meet

Pls answer this question

Answers

Answer:

648

Step-by-step explanation:

02 =29283 \y8283 862bh7363 sin tag 2836

Solve for all values of x by factoring. x^2-25= x 2 â’25= 0

Answers

Answer:

x = ± 5

Step-by-step explanation:

x² - 25 = 0 ( add 25 to both sides )

x² = 25 ( take square root of both sides )

x = ± [tex]\sqrt{25}[/tex] = ± 5

That is x = - 5, x = 5

what is 4x + 3x in simplest form

Answers

Answer:

7x

Step-by-step explanation:

Answer:

7x

Step-by-step explanation:

4x+3x

4+3=7

add x, same answer of 7x

FIND THE MEAN:
GRADES GIVEN
81, 70, 65, 89,70

Answers

Answer:

x-bar = 75

Step-by-step explanation:

81 + 70+ 65 + 89 + 70 =3 375

375/5 = 75

75 sorry if that’s wrong

pls help asap!!!



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

Answers

Answer:

C

Step-by-step explanation:

Area of circle = πr²

Circumference of circle = 2πr

1384.74=πr²

1384.74/π=r²

r=√1384/π=20.9947

2πr=2π(20.9947)=131.88m

what is the probability of selecting four red cards from a standard deck if each card is replaced before the next one is selected

Answers

Answer:

1/16

Step-by-step explanation:

1/2 * 1/2 * 1/2 * 1/2

=1/16

2x+2y=10 in slope intercept form

Answers

the answer i got was y= -x+5
Other Questions
Answer the question below X/2 -5=20 please give details most file managers include a way to create a folder through the save dialog box. true or false? .46 as fraction again in simplest What does Jesus teach us about the dignity and value of human life in this story? How do Jesus words and actions call us to love ourselves and others in this story? 2.Everybody pulls ..... the plugs on his/her tv before going to bed.3. Your music is too loud. can you turn it ......., please , or , ......... on your headphones.4. the museum is a special area. Please , switch ...... in .your mobile phones.5.I need to charge my battery. Can i ....... in my phone at your house.6.Don't take ..... your tablet PC. someone might steal it. leave it in your bag.7. Sam! Your room is a mess.Please put ..... all these clothers.8. Ted, can you turn .....the radio? there's a really good music programme on in a minute Student Council plans on selling fresh hamburgers at the homecoming game. Theybought 40 lbs of ground chuck to use to make burgers and each burger uses 0.25 lbsof chuck to make. What is the most amount of burgers they can sell at the game Answer this please fastest answer gets brainliest!! Carina loved running, and she loved winning too. She was the captain and star athlete of her track and field team. Although Carina wasnt an excellent runner when she first joined the team two years earlier, she practiced all the time and soon began to win almost every race in which she competed. Carina was doing so well that she thought she might become the winningest track and field athlete in her schools history! 2One afternoon at track practice, Coach Winder nabbed everyones attention to introduce a new athlete. This is Roberto," he said. "He just transferred to our school from Greensboro Middle School. Please welcome Roberto to the team! 3The members of the team clapped and jostled each other as they tried to shake Robertos hand. As the team captain, Carina shook Robertos hand first. She introduced herself and told Roberto that she was excited to have another team member. Roberto told Carina that he had been reluctant about joining the team, but Carina assured him that he would have a marvelous time. 4The next day, the members of the track team stretched before running some sprints. Carina told Roberto that he could race with her. Dont worry, she said. Ill go easy on you because its your first practice. 5Carina and Roberto lined up at the starting blocks. When they heard the CRACK of the starting pistol, Roberto and Carina started. After a short distance, Carina realized that Roberto was no longer beside her. She turned to see how far behind he had fallen, but to her amazement, Roberto was not behind her. She looked up and saw Roberto surging ahead. His feet moved as fast as lightning! When Carina realized that she was about to lose, she ran as vigorously as she could; however, it wasnt enough. Roberto triumphed. Carina seemed almost paralyzed with shock, but she managed to smile and congratulate him. 6Over the next few weeks, Roberto became a phenomenon on the track. No matter how hard Carina trained, she could never beat Roberto. 7One evening after a track meet, Carina was desolate. Roberto had won first place, and Carina had come in third! She considered hanging up her running shoes and quitting the team. Just as she was about to call Coach Winder, her father entered the living room. Carina explained her situation to him. 8If winning is so important to you that you cant merely have fun being a member of the team, said Carinas father, then I guess quitting is your only option. But, before you make your decision, think about why you originally joined the team. 9The next day, Carina walked into Coach Winders office and handed him a slip of paper. Coach Winders eyes widened as he read it. Then, he closed the note and shook his head approvingly. 11Thats right, Carina said with a smile, Id like Roberto to serve as co-captain of the team.What is a THEME for this story?A) Having fun is more important than winning.B) When someone does better than you, practice more so you can beat them.C) Never settle for second place.D) If someone is better than you at something, you should just quit. What is motivation in your own world Why did the English colonists feel betrayed by the British? Please answer ( DO NOT GIVE A FILE I WILL REPORT ) . Giving brainliest. how did napoleon use his military background to gain power Stephen was thinking of a number. Stephen divides by 5 then adds 1 to get an answer of 21. Form an equation with x from the information. this is like my 4th time posting this can someone plz help me What is the other term for batik ? There are 16 boys and 18 girls in a grade 6 math class . write the ratio of girls to boys in words as simply as possible What is the value of y when x = 3 for the line defined by the equation y = -2x + 5? the two main forms of sacred renaissance music are the mass and the Drew walks past the vending machine on his way to his office. Often he is tempted to grab a snack when passing by. If Drew purposely enters his work place by a different entrance so he does not walk by the vending machines, he is applying the ______ concept of behavior modification.