Mathematics High School

hallar el valor de la incognita de la siguiente ecuacion 3(x-1)-4(5-x)=2(6+x)​

Answers

Answer 1

Answer;

x = 7

Step-by-step explanation:

3(x - 1) - 4(5 - x) = 2(6 + x)

3x - 3 -20 + 4x = 12 + 2x

7x - 23 = 12 + 2x

7x - 2x = 23 + 12

5x = 35

x = 35/5

x = 7

Related Questions

If 250 dollars is made in five months add another 50 and it would be $300 in 6 months. Is this right? What's the equation for it?

Answers

Answer:

Yes

Step-by-step explanation:

It says each month they add 20% and i did it in a calculator and 250+20 percent is 300

A is the poin 3,5 and b is the point 0,k if the distance of ab is 5 units find the possible value of k

Answers

Answer:

K is either 9 or 1

Step-by-step explanation:

Sqrt((0 - 3)² + (k - 5)²) = 5

Square both sides

(0 - 3)² + (k - 5)² = 5²

(0 - 3)² + (k - 5)² = 25

-3² + (k - 5)² = 25

9 + (k-5)(k-5) = 25

9 + k² - 5k - 5k + 25 - 25 = 0

k² - 10k +9 = 0

k² - 9k - k + 9 = 0

k(k - 9) - 1(k - 9) = 0

k - 1 = 0 ; k = 1

k - 9 = 9; k = 1

K = 9 or k = 1

K is either 9 or 1

Combine Like Terms:
9) 20y +4 + 2y
10. 5x – 2y + 12 z + 6y
11. 6x - 4 + 3y - 2y - x + 10

Answers

Answer:

9. 20y + 2y to get 22y +4

10.-2y - 6y = 4y to get 5x + 12z +4y

11. 5x +1y + 6

Step-by-step explanation:

If a - is next to a number then it becomes negative and if it has a letter like y add or subtract it’s to the other y

Solve the system using elimination. −7x + 15y = 95 7x − 15y = 115
Please help ill give brainliest for actual answer

Answers

Mann dk...this is what that thing in graph

One dollar is worth 4 quarters the table below shows this relationship

Answers

Answer:

cant see the picture

Step-by-step explanation:

Turn on the light and repost it’s too dark

Can someone please help me I really need help

Answers

Answer:

2

Step-by-step explanation:

common sense

Kara earns $10.50 per hour plus 8.5% commission on all her sales. If Kara works 40 hours and sells $2000 worth of merchandise, how much will she earn for that week?

Answers

Answer:

10.50+2000 tanks .........

You don't have a driver's license yet, so you have to walk to the store. You can walk 1.5 miles in 24 minutes. If it
took you 32 minutes to walk to the store, how far away is the grocery store?
Answer:
Units:
Blank 1:
Blank 2:

Answers

2,000 that how long it is

Which is not the type of computer
a) micro computer
b) mini computer
c)mainfarm computer
d) calculator​

Answers

Answer:

d calculator

Step-by-step explanation:

my answer is d. calculator because its not part of computer.

I thinks it’s d) as well because calculator only need a computer to set it up mathematically

Can yallll plzzzzz hellllp meeeeee

Answers

Answer:

straight line is drawn

Step-by-step explanation:

with the help of pencil and scale which have black in colour

3x + 22 + 72 = 180
3x + 94 = 180
3x = 86
x = 28.67 (2dp)

Graph the function f(t) = e^0.4t.

Answers

Answer:

Step-by-step explanation:

Hope this helps! May I please have brainliest? :)

The function f(t) = e^0.4t is an exponential function and the variable of the function is t

How to graph the function?

The equation of the function is given as:

f(t) = e^0.4t

The above function is an exponential function and the variable of the function is t

Next, we plot the graph of the function using a graphing tool

See attachment for the graph of the function f(t) = e^0.4t

Read more about exponential functions at:

https://brainly.com/question/21594694

#SPJ2

f(0)=3, f(4) = 9

how do i find this

Answers

Answer:

Step-by-step explanation:

f(3) = 4    f(0) =9

 Y = mx + b

  m =  (9 -4) / (0 - 3) = -5/3

   b = 9

   Y = - 5/3 X + 9

A box of cereal states that there are 93 calories in a 3/ 4 cup serving.what is the unit rate for calories per cup?How many calories are there in 4 cups of cereal

Answers

Answer:

i love you :)

Step-by-step explanation:

93 ÷ 3 = 31 calories

31 per cup

31 × 4 = 124 calories

124 in 4 cups

Trevon reads from his book every week. The first week he read 15 pages, the second week he read 21 pages, the third week he read 33 pages, and the fourth week he read 51 pages. If the same pattern continues, how many pages will he read in each of the next 3 weeks?

Answers

Answer:

Trevon would have read 183 pages by then.

Step-by-step explanation:

You multiply by six each week.  For example,

Week 1: 15+6=21

Week 2: 21+12=33

Week 3: 33+18=51

Week 4: 51+24=75

Week 5: 75+30=105

Week 6: 105+36=141

Week 7: 141+42=183

Find the area of the shape shown below.
10
20
4

Answers

Answer:

240

Step-by-step explanation:

I believe it’s:
4X10= 40^2 /2= 20^2
20^2+ 20^2= 40^2
20X10= 200^2
Together = 40^2+200^2= 240^2

Jose earned 5h + 5 dollars for h hours and Alex earned 8h – 10 for h hours mowing lawns. If they earned the same amount

of money, then how many hours did they work?
They worked for
type your answer

Answers

Answer:

5 hours

Step-by-step explanation:

This is a classic pre-algebra question.

[tex]5h+5=8h-10\\5=3h-10\\15=3h\\h=5[/tex]

A cell phone provider offers a plan that costs $20 per month plus $0.20 per text message sent or received. A comparable plan costs $30 per month but offers unlimited text messaging. Complete parts a. and b. below. a. How many text messages would have to be sent or received in order for the plans to cost the same each month? In order for the plans to cost the same. text messages would have to be sent or received​

Answers

Answer:

a. 50 texts per month (you didn't include part b, sorry!)

Step-by-step explanation:

the difference in the plans is $10, so you have to find the number of texts that equal $10

$10/$0.20 = 50 text messages

Could some help me with this and explain it. I really need help

Answers

Answer:

1 =b / 2=e

Step-by-step explanation:

Find the dot product of U and V

u=7i, v = -2i + 5j

Answers

Answer:

-14

Step-by-step explanation:

Multiply the is together. Multiply the j's together. Add the answer. The answer is a scalar.

(7 × -2) + (5 × 0)

= -14

This is a Desmos question please help me

Answers

Answer:

B

Step-by-step explanation:

If the 2 lines were parallel, then

5x - 10 = 70 ( alternate angles )

Add 10 to both sides

5x = 80 ( divide both sides by 5 )

x = 16

For the 2 lines to be parallel then x = 16

Answer:

B.16

Step-by-step explanation:

First I would Make an equation:

For example set (5x-10)=70

Add 10 to both sides:

5x-10+10=70+10

Simplify:

5x=80

Divide both sides by 5:

5x/5=80/5

simplify:

x=16

In conclusion the answer is B.16

what is 2p 2- 3p - 20 = 0 written in a quadratic formula

Answers

Answer:

3p-20+2=0

Step-by-step explanation:

that is ...

¿Cuál es el resultado de restar la segunda ecuación de la primera? -7x-y=0 7x+8y=-6 ​ ​

Answers

¿hay opciones de respuesta?

The concession stand sells hot dogs and soda during the pee-wee football games.John bought 6 hot dogs and 4 sodas and paid $6.70. Jessica bought 4 hot dogs and 3 sodas and paid $4.65. At what prices are the hot dogs and sodas sold? Show your work.

Answers

Answer: Hotdog cost $0.75

Price of soda = $0.55

Step-by-step explanation:

Let the price of hot dogs be x.

Let the price of sodas be y.

6x + 4y = 6.70 ...... i

4x + 3y = 4.65 ....... ii

Multiply equation i by 4

Multiply equation ii by 6

24x + 16y = 26.80 ........ iii

24x + 18y = 27.90 ......... iv

Subtract iii from iv

2y = 1.10

y = 1.10/2

y = $0.55

Price of soda = $0.55

From equation i,

6x + 4y = 6.70

6x + 4(0.55) = 6.70

6x + 2.20 = 6.70

6x = 6.70 - 2.20

6x = 4.50

x = 4.50/6

x = $0.75

Hotdog cost $0.75

what is 5/6 divided by negative 1/3

Answers

Answer:

-2 1/2

Step-by-step explanation:

Answer:

-2 1/2

Step-by-step explanation:

5/6 ÷ -1/3

use keep, change, flip...

5/6 × -3/1 = -15/6

divide..

-15 divided by 6 and you get -2 1/2

Simplify 5a + 2c + 3a + c
1. 8a + 3c
2. 8a + 2c
3. 10ac

Answers

Answer:

1. 8a+3c

Step-by-step explanation:

5a+2c+3a+c

8a+2c+c

Solution: 8a+3c

I hope this helps!

Please help me thankyou

Answers

Answer:

S + 2 = F

Step-by-step explanation:

The number of sides of the end face plus 2 gives you the number of faces of the prism.

45/14=x/14 what is “x”

Answers

Answer:

45

Step-by-step explanation:

x=45, just get rid of the denominators when they're the same

Illustrate it in standard form of quadratic equations. please ♥︎✍︎❤︎

1. 5x^2 + 32 - 12 x = 5x + 12

2. 7x^2 + 8x - 12 = 2x^2 + 8x + 12​

Answers

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Hello can some kind soul help me with this problem please

Answers

Answer: y= -13/25x


Step-by-step:

Using (50,-26) and -13/25

You put it in the equation y=mx+b which would be -26 = -13/25 (50) +b
Then you simplify to find b which would be 0

so the answer would be y = -13/25x

Hope this helps :^

Schalean paid $559.94, tax included, for a stereo system. If he paid $38.34 in sales tax, what percent sales tax did Schalean pay?

Answers

Answer:

Schalean paid about 13.6% sales tax

Sorry if i got it wrong

Answer:

9.36

Step-by-step explanation:

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