whats 3(x + 2) = 21?
show work please !!​

Answers

Answer 1

Answer:

x=5

Step-by-step explanation:

[tex]3(x+2)=21[/tex]

[tex]3x+6=21[/tex]

[tex]3x+6-6=21-6\\\\3x=15\\\\\frac{3x}{3} = \frac{15}{3} \\\\x=5[/tex]

Answer 2

Answer:

x = 5

Step-by-step explanation:

You first have to multiply 3 by x and 2, and you would get 3x and 6. 3(x + 2)=3x +6

Then you have to move the 6 to the other side and it will become negative. 3x= -6 +21

Then you subtract 21-6 to get 15. 3x = 15

Then you are left with 3x = 15.

Divide 3 from both sides and you get x =5.


Related Questions

CAN SOMEONE HELP- I'LL GIVE BRAINLIEST! I need all the questions pls.

Answers

Answer:

h

Step-by-step explanation:

Answer:

Step-by-step explanation:

1) x is 2 and y is 6

2) x is 10 and y is 30

3) x is 10 and y is 30

 

What is the slope in the equation? y + 2 = 5(x - 1)​

Answers

Answer:

m=5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Let's write the equation in the slope-intercept form by solving for y.

y + 2 = 5(x - 1)

y = 5x - 5 - 2

y = 5x - 7

Answer: The slope is 5

2/3X18 Multypily plzzzz

Answers

Answer:

12

This is the answer because 2/3 times 18 is 12...

Answer: 12

Step-by-step explanation:

2/3 * 18

you put 18 over 1

so 2/3 * 18/1

2*18= 36

3*1= 3

36/3 = 12

solve for x.show your work please

- 1/2x < -12

Answers

Answer:

x <24

Step-by-step explanation:

first cancel negative signs

then transfer 2 to right side

Greetings.

The answer is x > 24.

Explanation:

Solving Inequality is almost the same as equation. However, you have to know one thing about solving an Inequality.

That is whenever you move the negative coefficient of the variable, you have to swap the sign of Inequality.

[tex]-\frac{1}{2}x<-12[/tex]

Reminder that

[tex]-\frac{1}{2}x=-\frac{x}{2}[/tex]

We use negative x above 2 instead (Easier in solving)

[tex]-\frac{x}{2}<-12[/tex]

Then we move 2 to divide -12.

[tex]-x<-12(2)\\-x<-24[/tex]

Because the coefficient for x is in negative. We move -1 to divide -24 as we get 24 (Because negative divide negative = positive)

But remember that "whenever you move the negative coefficient of the variable, you have to swap the sign of Inequality."

So we change from < to > instead.

[tex]x>24[/tex]

what is 6 to the 3rd power divided by 6 to the 5th power

Answers

the answer to you question is 0.02777778
your welcome

Answer: = 1/36

Step-by-step explanation:

How do I find the measure of angle H?

Answers

Answer: 110 degrees

Step-by-step explanation:

Similar polygons have the exact same angles. So we can fill in 60 for angle E, because it matches up with angle A.

The angles in a quadrilateral add to 360 degrees.

So 60 + 100 + 90 + Angle H = 360

If we solve for angle H, we get that angle H = 110 degrees.

What angle pair relationship is shown?
A Alternate Interior
B. Alternate Exterior
C. Corresponding
D. Same Side Interior

Answers

Answer:

hmmmmmmmmmmmm ( thanks heavily in mind) if I can remember correctly I'm pretty sure it would be c

Step-by-step explanation:

I done this question for

Find the measure of each missing angle

Angle 24 =

Angle 25 =

Angle 26 =

Answers

Answer:

90

35

55

Step-by-step explanation:

What is a solution of the equation x + y = 7?

A)3,3
B)1,6
C)5,-2
D)2,4

Answers

Answer:

b

Step-by-step explanation:

plug in 1 for x and 6 for y

1 + 6 = 7

xoxo, your highness...

7x-2+4x+5x-10=180


what is the measure of 4x

Answers

Answer:

1) 7x-2+5x-10=180

2)16x-2-10=180

3)16x - 12 = 180

16x=192

x=12

Three students Tahat, Promi and Kabi, Appeared at an examination. Promi secured 11 marks less than Tahat, 5 marks more than kabi and again. Tahat's marks were 75% of the sum of Promi and Kabi's marks. Find out their individual marks

Answers

Answer:     Tahat= 40.5 marks    Promi =29.5 marks,  Kabi =24.5 marks

Step-by-step explanation:

Step 1

Let the marks be represented as  x+11, x and x-5 for Tahat, Promi and Kabi respectively

and Tahat's marks which was 75% of the sum of Promi and Kabi's marks be expressed as

x+11 = 75/100(x + x-5)  

Step 2 --- Solving

x+11 = 75/100(x + x-5)  

x+ 11 = 3/4(2x-5)

x+11= 6x-15/4

4x+44=6x-15

44+15=2x

x= 59/2= 29.5,

A) x= Promi's  mark was 29.5

B)Promi secured 5 marks more than kabi

Therefore, Kabi's mark was 5 marks less than Promi

= x-5

29.5- 5= 24.5 marks

C)Promi secured 11 marks less than Tahat, Therefore Tahat marks were 11 marks more than Promi

x+11= 29.5 + 11= 40.5

You mix soda water, fruit punch concentrate, and ginger ale in a ratio of 1:2:5 to make fruit punch. How many pints of each ingredient should you use to make 4 gallons of fruit punch

Answers

I don’t understand sorry

Answer:Fruit punch conertrat is 8

Step-by-step explanation: I did it and got 8 for fruit punch c

The worst feeling in the world: Getting earbuds ripped out of your ears. Whats yours?

Answers

Answer:

When you're listening to heartfelt emotional music and you're about to cry and then it starts buffering explanation:

Mood killer

Answer:

being abandoned by my significant other, being unable to talk to my significant other, just being alone and getting abandoned in general

Step-by-step explanation:

The people are: Frank, Ruby, Tom, and Wendy

The cost of their food: $5.99, $6.99, $7.99, $8.99

Each person bought a different food item: banana, apple, mango, and grapefruit

Each person also bought a different drink: milk, green tea, water, and iced tea



See if you can match the person with the cost of their meal, food and drink. I will give you two free answers. The first one is Tom paid 8.99. The second one is Ruby had the grapefuit.



1. The person who had the milk paid $1 more than Wendy.
2. Ruby paid more than the person who had the milk.
3. The person who ordered the banana was either the person who had the milk or the
person who paid $5.99.
4. The four friends were the person who paid $8.99, the person who ordered the
apple, the person who ordered the grapefruit, and Wendy.
5. Tom paid $1 more than the person who ordered the grapefruit.
6. The person who ordered the grapefruit paid $2 more than the person who had the water.
7. The person who paid $7.99 was either the person who had the iced tea or the person who
had the water

Group of answer choices
wendy (cost)

[ Choose ]
wendy (drink)

[ Choose ]
wendy (food)

[ Choose ]
frank (cost)

[ Choose ]
frank (drink)

[ Choose ]
frank (food)

[ Choose ]
ruby (cost)

[ Choose ]
ruby (drink)

[ Choose ]
ruby (food)

[ Choose ]
tom (cost)

[ Choose ]
tom (drink)

[ Choose ]
tom (food)

[ Choose ]

Answers

Answer:

yo it took me 3 tires and 15 minutes, but i got it. like 5 seconds ago

Step-by-step explanation:

okay one is wrong this an 11/12, but i sped thru it to get the answers, you have to figure out which is incorrect

wendy

(cost)

5.99

wendy

(drink)

water

wendy

(food)

banana

frank

(cost)

6.99

frank

(drink)

milk

frank

(food)

apple

ruby

(cost)

7.99

ruby

(drink)

iced tea

ruby

(food)

iced tea

tom

(cost)

8.99

tom

(drink)

green tea

tom

(food)

mango

Wendy (cost) = $7.99

Wendy (drink) = water

Wendy (food) = banana

Frank (cost) = $6.99

Frank (drink) = iced tea

Frank (food) = apple

Ruby (cost) = $8.99

Ruby (drink) = milk

Ruby (food) = grapefruit

Tom (cost) = $5.99

Tom (drink) = green tea

Tom (food) = mango

Based on the given information and the provided clues, we can match the people with the cost of their meal, food, and drink as follows:

wendy (cost) = $7.99

wendy (drink) = water

wendy (food) = banana

frank (cost) = $6.99

frank (drink) = iced tea

frank (food) = apple

ruby (cost) = $8.99

ruby (drink) = milk

ruby (food) = grapefruit

tom (cost) = $5.99

tom (drink) = green tea

tom (food) = mango

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

Pls help ;-;
Given the equation below, if x=10, what is the value of y?
y= x -6.5​

Answers

Answer: 3.5

Step-by-step explanation:

y=(10)-6.5

HELP THIS IS DUE TODAY!

Answers

Answer:

I think its B

Step-by-step explanation:

I hope it helps

HELP PLZ I NEED THE RIGHT ANSWER

Answers

Answer:

54

Step-by-step explanation:

As ◇PQS is congruent to ◇ PRS,

6n + 3=4n+11

n=4

QR=6×4+3+4×4+11

PLEASE HELP!!!!!!!!
find the missing value
y=-4x-1
( ,11)?

Answers

What do you mean by ( ,11)?

Answer: 4

Step-by-step explanation:

Paul joins a gym that has an initial membership fee of $75 and a monthly cost of $40. How much will they have paid after 4 months? *

Answers

$235 total. 75 + 40(4). then simplify. 75 + 160 = 235

Anyone got the answer?(^•^)

Answers

Answer:

It's 8

Step-by-step explanation:

[tex] 16 ^{ \frac{3}{4} } = \sqrt[4]{16 ^{3} } = \sqrt[4]{2 ^{4 \times 3} } = 2^{ \frac{12}{4} } = 2^{3} = 8[/tex]

Answer:

8

Step-by-step explanation:

Step-by-step on how to solve it is in the image below.

Happy to help! :)

Solve in simultaneou linear equation.
The total cost of bag and an umbrella is Rs 2000.If the cost of the bag is Rs 1000 less five times the cost of the umbrella ,find the cost of each of these two items.

Answers

Answer:

The bag costs 1500, while the umbrella cost 500

Step-by-step explanation:

Let the cost of the bag be b and the cost of the umbrella be u

Total cost is;

b + u = 2,000 •••••(i)

From the second part of the question;

b = 5u-1000 ••••••(ii)

Substitute ii into i

5u-1000 + u = 2000

6u = 2000 + 1000

6u = 3000

u = 3000/6

u = 500

To get b, substitute the value of u into equation ii

b = 5(500)-1000

b = 2500-1000

b = 1500

in an examination ,80%examines passed in English ,70%in mathematics and 60% in both subject if 45 examines failed in both find the number of examines who passed only one subject also the number of examines who failed mathematics​

Answers

Answer:

135 and 135

Step-by-step explanation:

The computation is shown below:

The number of examiners who passed in only one subject is as follows

=  n(E) - n(E ∩M) + n(M) - n(E ∩M)

= (80 - 60 + 70 - 60)%

= 30%

Now the number of students who passed in minimum one subject is

n(E∪M) = n(E) + n(M) -  n(E ∩M)

= 80 - + 70 - 60

= 90%

Now the number of students who failed in both subjects is

= 100 - 90%

= 10% of total students

= 45

So total number of students appeared for this 450

So, those who passed only one subject is

= 450 × 30%

= 135

Now the Number of students who failed in mathematics is

= 100% - Passed in Mathematics

= 100% - 70%

= 30% of 450

= 135

3. Point P(2, -1) is the image of point
P(3, 4) under a translation. What
is the image of (5,2) under the
same translation?
A(4, -1)
B (6,-3)
C(4, -3)
D (-3, 4)

Answers

the answer is c!! :)

Someone please help I will give brainliest to the correct answer

Answers

Answer:

X inter=   (-1.375,0)

Y inter=   (0,2.2)

Step-by-step explanation:

I used "desmos graphing calculator"

If answer is right, check out desmos graphing calculator. It is a really good website where you enter equation and it graphs it for you.

I use desmos for questions that have anything to do with graphs

Answer:

x intersection (-1.375;0)

Y intersections (0;2.2)

Step-by-step explanation:

If u wanna find solutions to this kind of problems first write the equation if x/y=0 put it in equation and calculate to get y/x value ___ That way you will know in which point plot intersects y/x axis

helppppppansjfnnsnwkgn

Answers

Answer:

the third one P N M

Step-by-step explanation:

Answer:

NPM

Step-by-step explanation:

i got you fammmmmmmmm

An electrician charges an initial fee of $35 for attending a house call. Thereafter, he charges $15 for every hour spent on the job. The equation for this is represented = 35 + 15, where $Y represents the charges the house owner has to pay and is the number of hours the electrician spends on the job: (a) , find the amount of money the house owner needs to pay if he spends (i) 1 hour (ii) 2 hours (iii) 3 hours (iv) 4 hours on the job very urgent

Answers

Answer:

1 hour=35+15=50

2 hours=35+15(2)=65

3 hours=35+15(3)=80

4 hours=35+15(4)=95

Step-by-step explanation:

What is another way to express 48 + 32?

(a) 6(8+6)
(b) 16(3 + 2)
(c) 3(16 + 11)
(d) 12(4 + 3)​

Answers

Answer:d

Step-by-step explanation: tufryvztgv

Answer: Its B. not D the other person was off and probably doesn’t know how to math lol

9+3|5-x|=24

What is the lines for and how do I solve X with them?

Answers

Answer:

the lines represent absolute value bars

[tex]x=0,10[/tex]

Step-by-step explanation:

STEP 1: Move all terms not containing |5−x| to the right side of the equation.

[tex]3|5-x|=15[/tex]

STEP 2: Divide each term by 3 and simplify.

[tex]|5-x|=5[/tex]

STEP 3: Remove the absolute value term. This creates a ± on the right side of the equation because |x|=±x.

5-x=±5

STEP 4: Set up the positive portion of the ± solution.

[tex]5-x=5[/tex]

STEP 5: Solve the first equation for x.

[tex]x=0[/tex]

STEP 6: Set up the negative portion of the ± solution.

[tex]5-x=-5[/tex]

STEP 7: Solve the second equation for x.

[tex]x=10[/tex]

NOTE: The solution to the equation includes both the positive and negative portions of the solution.

[tex]x=0,10[/tex]

Answer:

x=0,10

Step-by-step explanation:

What is the measure of this

Answers

Answer 21
Explanation: a triangles angels equals 180 in total so you would add the two angles you already know 117 plus 42 which equals 159. Then subtract from 180 which would be 21 your answer!

Hope this helps :)

Evaluate and simplify the following complex fraction.

Answers

Answer:

Thus,

[tex]\frac{\frac{2}{3}}{\frac{4}{-9}}=-\frac{3}{2}[/tex]

Step-by-step explanation:

Given the expression

[tex]\frac{\frac{2}{3}}{\frac{4}{-9}}[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{-b}=-\frac{a}{b}[/tex]

[tex]=\frac{\frac{2}{3}}{-\frac{4}{9}}[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{-b}=-\frac{a}{b}[/tex]

[tex]=-\frac{\frac{2}{3}}{\frac{4}{9}}[/tex]

[tex]\mathrm{Divide\:fractions}:\quad \frac{\frac{a}{b}}{\frac{c}{d}}=\frac{a\cdot \:d}{b\cdot \:c}[/tex]

[tex]=-\frac{2\cdot \:9}{3\cdot \:4}[/tex]

[tex]=-\frac{18}{12}[/tex]

[tex]\mathrm{Cancel\:the\:common\:factor:}\:6[/tex]

[tex]=-\frac{3}{2}[/tex]

Thus,

[tex]\frac{\frac{2}{3}}{\frac{4}{-9}}=-\frac{3}{2}[/tex]

Other Questions
What would a society be like if there were no rules enacted by a body like the legislature? !!!!Hurryy plz will give 20 points and brainlyest plzzzzzz!!!Which division problem does the model show? Perry and Blake are having a discussion about the proper method of returning to a recovery heart rate. What is the statement that best reflects correct exercise technique regarding this portion of the bicycling exercise routine? (2 points) a - Gradually decrease the pedaling speed in the last few minutes of exercise time. b - Gradually increase the pedaling speed in the last few minutes of exercise time. c - Maintain the same pedaling speed throughout the entire exercise time. d - Pedaling speed has no effect on recovery heart rate. Who does a U.S. Senator represent?O The state legislatureO All the people of the state he or she is elected fromHalf the people in the state he or she is elected from If I just ate 300,000 calories what is another way of saying thatA. 300 Calories B. 3,000 calories C. 300,000,000 How do you curate your life on social media?plz its due tm plz answr now Which section of the function is constant? (2 points)1) A2) B3) C4) D which following equal to forty and two hundred seventy four thousandsths?A. 40.274B.40.074C.40.274D.40.0274 State the slope and the y-intercept for the graph of the equation. -x+y=4 The government cannot deprive you of life, liberty, or property without due process of the law. What amendment is that? Beans? or... no Beans? You need to implement a class that represents the state of a room or game section. The class will contain a room_id, a description, and possibly a choice1 and a choice 2. You will need to implement the __str__ override to output the state of the room. You should also implement a method called game_over. If the room does have a choice 1 and choice2 then the game is over and it should return True. Complete the following statement.Zero pairs are two numbers that ___ to get zero.A: subtractB: multiplyC: divideD: add Mrs. King has a stack of papers to grade that contains 12 boy's papers and 8 girl's papers. What is the probability that the first paper Mrs. King's grades will be a boy's paper? * the solution of 3x+5=x+9 is ____ 574=547is that associative property of multiplication or is itcommutative property of multiplication Solve 2x>8 or 2x< 4. f(x)=2x^(2)-5x-20 find f(-9) Carlos: Hola Gloria, que bueno encontrarte. Dnde vives?Gloria: Hola Carlos, que alegra. Vivo en los apartamentos para estudiantes en la prxima calle.Carlos: Vives sola o con otras chicas?Gloria: Vivo con tres chicas ms. Estbamos viviendo en una casa pero la vendieron.Carlos. Necesitas que te ayude?Gloria: Bueno, tal vez si, tenemos que limpiar los cuartos y traer unas lmparas desde el carro. Tambinnecesitamos ayuda con la mesa y la cama.Carlos: Est bien, yo puedo hacer eso.Dnde vive Gloria?A. vive en los apartamentos para estudiantesB. vive en una casaC. vive en un rbolD. vive en la escuela 25.4.2 Test (CST): Citizen ConnectionsQuestion 19 of 20What is one way political parties shape public policy?A. Working toward dissolving the two-party systemO B. Voting on the issues that are of most concern to party membersC. Creating and passing legislationD. Helping elected officials who belong to the party work togethermore effectivelySUBMIT