resolver el sistema x-y =6 y este otro 2x+5y= -2 porfaaaa es para mañana

Answers

Answer 1

Answer:

x =4

y = -2

Step-by-step explanation:

a) x - y = 6

b) 2x + 5y = - 2

a) x = y + 6

b) 2(y+6) + 5y = -2

2y + 12 + 5y = -2

7y = -2 -12

y = -14/7

y = -2

a) x - (-2) = 6

x +2 = 6

x = 6-2

x = 4


Related Questions


1. Translate the following sentence into an equation and solve. The
product of five and the sum of a number x and three is twelve .?

Answers

Answer: 5(x+3)=12

Step-by-step explanation:

Arrange in order from least to greatest 0 , -1, 1/2, 4/3, 1

Answers

Answer:

-1, 0, 1/2, 1, 4/3

Step-by-step explanation:

What is the slope of this line?

Answers

The slope of horizontal lines is zero because they are straight with no curve.

The slope is calculates using the rise over the run.

Rise= How many units we move up. Here we move 0 units.

Whatever the run is (NOT 0) if we divide 0 by the run, we will get 0.

Diagonal lines always have slope.

Hope it helps!

#HaveAnAmazingDay

Taylor states that 2,800,000 in scientific notation is 2.8 x 10 -6 because the number has six places to the right of the 2. Is Taylor's reasoning correct?

Answers

Scientific Notation is the way of writing a number or expressing them in a shorter or more compact way.

No, Taylor's resoning is incorrect because  2,800,000 = [tex]2.8 * 10^{6}[/tex]

From the question, we are given:

2,800,000 .

2,800,000 in scientific notation is  [tex]2.8 * 10^{6}[/tex].  

The reason the power is not to the negative 6 is that we are moving from the right-hand side to the left-hand side 6 times.

Therefore, Taylor's reasoning is incorrect.

To learn more, visit the link below:

https://brainly.com/question/22241437

Determine the x- and y-intercepts of the graph of x+2y=−4 .


Then plot the intercepts to graph the equation. Plzzz help

Answers

Answer: graph is in picture

Graph the line using the slope and y-intercept, or two points

Slope: −1/2

x y

0. −2

2. −3

—————-————————————

the x- and y-intercepts :

x-intercept(s): (−4, 0)

y-intercept(s): (0, −2)

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

2.5 lb; ounces
I need steps by steps

Answers

Answer:

2.5 lbs = 40 Ounces

Step-by-step explanation:

Conversion factor: 1 lb = 16 oz

1) Ounce = Pound * 16

2) Ounce = 2.5 * 16

3) Ounce = 40

Pizza world is running a special where an extra large pizza (with a diameter of 20 in) costs only 15.99. What is the cost per square in?

Answers

Answer:

pizza yum

Step-by-step explanation:

Answer:

$0.80 per square inch

Step-by-step explanation:

To find the cost per every square inch, divide the total cost of the pizza by the inches of the pizza. The pizza is 20 square inches and costs $15.99. The cost for every inch of pizza would be $0.7995, but you can just round that to $0.80 ($15.99/20 = $0.7995).

The question is in the picture

Answers

Answer:

y=2x

Step-by-step explanation:

As you can see in the picture, the y value is 2 times the x value.

Which statement best explains the relationship
between lines AB and CD?
O They are parallel because their slopes are equal.
• They are parallel because their slopes are negative
reciprocals.

They are not parallel because their slopes are not
equal.

They are not parallel because their slopes are
negative reciprocals.

Answers

Answer:

The answer is A

Step-by-step explanation:

Hope it helps

At a local pizza parlor, patrons have 2 choices of cheese and 8 choices of topping.



In how many different ways can a patron choose 1 type of cheese and 1 type of topping?


10


4


2


16

Answers

the can choose 10 maybe

Answer: 16

Step-by-step explanation: i took the quiz

Find the surface area of the composite figure
7 cm
10 cm
6 cm
7 cm
8 cm
2 cm

Answers

Answer:

273.62

Step-by-step explanation:

It is -4°F in the morning. By afternoon it is 15°F. What is the temperature change?

Answers

Answer:

The temperature change is 11.

Step-by-step explanation:

You take the starting temp. (-4) and add it to the final temp (15) which looks like this:

-4+15

This gets you the answer of 11.

The other person is correct.Sorry about that

Have some points! (o˘◡˘o)
Since you all work so hard ( ˙▿˙ ) <3

Answers

Answer:

1+1=3

Step-by-step explanation:

Help if u understand please and ty

Answers

11g +9h

You add the number of g’s which would be 9g +g+g = 11g

11g +9h

Can you please help me!

Answers

Answer:

< 2 and < 6

< 3 and < 7

>> Corresponding angles are the pairs of angles that are found in the same relative position on different intersections.

A polynomial is a factor of another polynomial if when divided they have a remainder of zero. True or False.

Answers

Answer:

True

Step-by-step explanation:

The Factor theorem states that  for any polynomial f(x) if f(c)=0 then x-c is a factor of the polynomial f(x).

If any polynomial f(x) is divided by x-a and remainder is 0 that means f(a)= 0 .In other words we can say x-a is a factor of the polynomial f(x).So the statement :If a polynomial is divided by (x-a) and the remainder equals zero then (x -a) is a factor of the polynomial is True.

Have a happy day! <3Miss Hawaii

Four friends at a party poped 3/4 of a bag of popcorn and only ate half what fraction did they eat

Answers

Answer:

1/4 i think..couse 3/4 - 1/2 = 1/4

Step-by-step explanation:

What else would need to be congruent to show that A ABC= AXYZ by ASA?

Answers

Answer:

its c becuase its those sides are congruent then it would be angle side angle

Step-by-step explanation:

Have a good day :)

ya here hyyfyvtirkkkkkkkkkkkkkikkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Answers

Answer:

how is this a math question lol

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

9. If a train travels 270 mi. in 9 hr., what is its average speed?
20 mph
O
30 mph
d
40 mph
50 mph

Answers

Answer:

30 miles per hour

Step-by-step explanation:

You divide the distance by time to receive the average speed.

270 / 9 = 30

Answer:

The train travels 30 miles in 1 hour

Step-by-step explanation:

First, you take the miles and divided it by the hours. That will give you the average speed/MPH (miles per hour)

Plsss help answer the question don’t just get the points and not answer my question Plss I’m struggling

Answers

Answer:

This is cheating

Step-by-step explanation:

First you follow what your teachers tell you to do and listen

Abdul drove 250 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 275 miles?

Answers

Answer:

9.9 gallons

Step-by-step explanation:

250 mi/9 gas = 27.7777 miles per gallon of gas

275 mi/ (27.77 mi/gal) = 9.9 gallons

9.9 gallons,,,,,,,,,,,,,,,,,,

Bernard's Ice Creamery sold 50 sundaes last week. There were nuts on 29 of the sundaes. What is the ratio of the number of sundaes without nuts to the number of sundaes with nuts?

Answers

Answer:

'its a remix and im comin wih dat bow bow bow'

Step-by-step explanation:

Someone help plz make sure it’s right and will make brainiest:)

Answers

The correct answer is y = -x + 3.

Good luck :) !

After eating dinner at a restaurant, Brent's bill before tax is $24.00. The sales tax rate is 8%. Brent decides to leave a 30% tip for the waiter based on the pre-tax amount. How much money will Brent pay total, including tax and the tip?

Answers

Sales tax is $1.92. The tip he will give is $ 7.20. In total he will pay $33.12

2. Frank has been driving at a constant speed for 3 hours, during which time he traveled 195 miles. Frank would like to know how long it will take him to complete the remaining 455 miles, assuming he maintains the same constant speed. Help Frank determine how long the remainder of the trip will take.The remainder of Frank's trip is _______ hours.

Answers

Answer:

1: 195 divide by 3=65m/h

2: 455divide by 65=7hours

The remainder of Frank's trip is __7_____ hours.

Which series of transformations will not map figure H onto itself?

(x + 0, y − 2), reflection over y = 1
(x + 2, y − 0), reflection over x = 3
(x + 3, y + 3), reflection over y = −x + 7
(x − 3, y − 3), reflection over y = −x + 2

Answers

Answer:

(x − 3, y − 3), reflection over y = −x + 2

view attached pic for proof :)

Can somebody please help with this question

Answers

Answer : 1.1 squared

1.1 times 1.1 equals to 1.21
Hope this helps :)

Answer:

1.4641

Step-by-step explanation:

But do u ask about the square root ? or the number squared to get 1.21?

Please help me I need this done in like 10 minutes!!

Find the solution for this system of equations.
2x-3y=2
х= 6у-5

Answers

X = 3
Y = 4/3
You solve the problem by substitution method
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