solve by elimination 2x-3y=2 -2x-y=-26

Answers

Answer 1

Answer:

x= 10, y= 6

Step-by-step explanation:

2x -3y= 2 -----(1)

-2x -y= -26 -----(2)

(1) +(2):

2x -3y -2x -y= 2 -26

-4y= -24

y= -24 ÷(-4)

y= 6

Substitute y= 6 into (1):

2x -3(6)= 2

2x -18= 2

2x= 18 +2

2x= 20

Divide both sides by 2:

x= 20 ÷2

x= 10


Related Questions

The list shows the number of songs that five students each downloaded last week.32, 43, 38, 28, 51What is the mean absolute deviation of the numbers in the list

Answers

Answer:

Its 38.4

Step-by-step explanation:

how do i go from 9 to 48

Answers

Add or Mulitaply or divoin that is really the main thing you have to do

Step-by-step explanation:

Answer: 9 x 5 1/3

Step-by-step explanation: 9 x 5 1/3 = 9 x 16/3 which can be simplified to 3 x 16 = 48.

ITS URGENT PLEASE HELP ME
edgar ran 1/15 of a mile on monday, 1/5 of a mile on tuesday, and 1/3 of a mile on thursday. what is thee total amount of miles edgar ran in 3 days??

Answers

I think that it is D or A
given:

[tex] \frac{1}{15} + \frac{1}{5} + \frac{1}{3} [/tex]

to find:

the simplest form.

solution:

[tex] \frac{1}{15} + \frac{1 \times 3}{5 \times 3} + \frac{1 \times 5}{3 \times 5} [/tex]

[tex] = \frac{1}{15} + \frac{5}{15} + \frac{3}{15} [/tex]

[tex] = \frac{1 + 3 + 5}{15} [/tex]

[tex] = \frac{9}{15} [/tex]

[tex] = \frac{3}{5} [/tex]

therefore, the correct answer is option A.

is this correct? if not whats the answer?

Answers

Answer:
Btw I got this answer from the app gauth.math it’s rlly helpful download it

A main meal in a Japanese restaurant cost 4374 yen. The exchange rate is £1 = 189 yen. What is the cost in pounds? ​

Answers

Answer:

23,21 pounds

Step-by-step explanation:

4387/189 = 23,21

Help ASAP Please answer this​

Answers

Answer:

1. 60

2. 70

3. 30

Step-by-step explanation:

Hope this helps!!!!

Step-by-step explanation:

1.m<2=60°

30°+90°

=120°

180°-120°

=60°

2.m<1=70°

20°+90°

=110°

180°-110°

=70°

pls help it is due very soon.

Answers

Answer:

Step-by-step explanation:

The Pythagorean theorem is sqrt(a^2 + b^ 2) = c, so:

sqrt(22^2 + 8^2) = c

sqrt(548) = c

23.41 = c

What is the product?

Answers

Answer:

the last option: 6x^3 -33x^2 +45x - 6

Step-by-step explanation:

Distribute parentheses

= 3x times 2x^2 + 3x (-7x) +3x times 1 -6 times 2x^2 -6 (-7x) -6 times 1

Simplify

3x times 2x^2 +3x (-7x) +3x times 1 -6 times 2x-2 -6 (-7x) -6 times 1

Answer:

6x^3 -33x^2 +45x - 6

solve pls brainliest

Answers

Interest = principal x rate x time

Interest = 8000 x 0.03 x 6

Interest = $1,440


Answer: $1,440

Factor this & please show all work. I give brainliest :)

Answers

Answer:

(5x^2-6)*(2x-7)

Step-by-step explanation:

1.(((10 • (x3)) -  (5•7x2)) -  12x) +  42

2.(((2•5x3) -  (5•7x2)) -  12x) +  42

3. 10x3-35x2-12x+42  is not a perfect cube

4.Factoring:  10x3-35x2-12x+42

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  -12x+42

Group 2:  10x3-35x2

Pull out from each group separately :

Group 1:   (2x-7) • (-6)

Group 2:   (2x-7) • (5x2)

              -------------------

Add up the two groups :

              (2x-7)  •  (5x2-6)

5.  Factoring:  5x2-6

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

=  (5x2 - 6) • (2x - 7)

that should be the answer tell me if i got it wrong and ill try to fix it.

Giving Crown and Points don't give me 1 answer

Answers

Answer:

2 and 4

Step-by-step explanation:

1% of 72 is 0.72
0.72 * 40

is 28.8

10% of 72 is 7.2

7.2 * 4 is also 28.8

40% of 70 is 28.8

Given that there are 3 feet or 36 inches in 1 yard, which of the following amounts is greater than 4 yards? Select all that apply.

A) 15 feet
B) 150 inches
C) 3 yards, 4 feet
D) 3 feet, 15 inches
E) 10 feet, 11 inches

Answers

Answer:

a and b

Step-by-step explanation:

for A just do 3*4

For B just find out what 36*4 is

Find the domain of the graphed function.

Answers

Answer:

D. 2 ≤ x ≤ 5

The domain is the x values of the graph.

       Here, we have points with x values at 2 and 5. Since the function stays within these two points, our domain is;

D. 2 ≤ x ≤ 5

We always use the y values as the range of a function on a graph while x values gives us the Domain . So , by looking at the above graph we can say that , [tex]{\pmb{\bf x \in [2,5]}}[/tex] or can further written as [tex]{\bf 2\leq x\leq 5}[/tex] .

Henceforth , Option D) [tex]{\bf 2\leq x\leq 5}[/tex] is correct

PLEASEEEEE HELPPPPPP ASAPPPPP

Answers

The Pythagorean Theorem is a^2 + b^2 = c^2
It’s usually used on triangles when two sides are given but one isn’t. C represents the hypotenuse while A and B are interchangeable. So solving for the hypotenuse would look like √a^2+ b^2= c but solving for a or be would look like √c^2-b^2 = a and √c^2-a^2= b.

So number wise √5^2+12^2 = 13

the gray car can drive 420 miels on 15 gallons of gas and the blue can can drive 510 miels on 17 gallons of gas. what are the unit rates for a gallon of gas for each car? which car has the best unit rate (more miels for less gas_ show your math and explain each step you took to determine your answer.

Answers

Answer:

420+15+510+17=962

Step-by-step explanation:

The taxes on a piece of property valued at $40,000 were $860. At the same rate, what would be the taxes on property valued at $55,000?

Answers

Ratio and Proportion Method
Since both are at the same rate, then ratio and proportion can be applied here

If $40000 = $860

Then $55000 =55000x(860/40000)
=$1182.50

Therefore the taxes which would be on $55000 is $1182.50

What is x find it please! Two questions 15 and 18

Answers

Let other 2 angles be d

44 + 2d = 180°

(sum of triangle)

2d = 180 -44

2d = 136

d = 136/2

d = 68

x = 68 + 44 (exterior angle is equal to sum of interior opposite angles)

x = 112°

l

2. part

let the other angles be d

3d = 180° (sum of angles of triangle)

d = 60°

x = 60 + 60

x = 120°

11=y-6 what is this answer

Answers

Answer:

y = 17

17 - 6 is 11, so 17 would be the only number convenient.

Answer:

y = 17!

Step-by-step explanation:

11 + 6 = y - 6 + 6

- 12 ÷ (-4)
How do I solve this? ​

Answers

Step-by-step explanation:

We're going to be diving -12 by -4.

What do we need to know?

Integer Rule - when 2 negative numbers multiply or divide, the product/quotient is positive.

Solve using the integer rule:

[tex]-12 \div -4 =3[/tex] is the same as [tex]12 \div 4 = 3[/tex]

3 is your quotient.

h(x) = x + 3
3. h(-7) =

Answers

h(x) = x+3-----(1)

put your value (-7)

into equ. (1) as x

h(-7) = 7+3

h(-7) =10

A triangle has side lengths of (9f+g) centimeters, (5f+9h)centimeters, and (2h+7g) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

Answers

Answer:

Step-by-step explanation:

Perimeter is sum of all the sides.

Perimeter = 9f + g + 5f + 9h + 2h + 7g

                 = 9f + 5f + g +7g + 9h + 2h   {Combine like terms}

                 =  14f + 8g + 11h

If Janelle originally started 575
miles from Mammoth Lakes and continues traveling at the same rate (from part (a)), how many more hours will it take her to arrive at her destination?

Answers

Given that Janelle travels at 65 mph. the number of more hours it will

take her to reach her destination is approximately 5 hours.

How can the time to reach her destination be calculated?

Possible part of the question that appear missing are;

The distance Janelle drove in 4 hours = 260 miles

The distance from which she started = 575 miles

Required:

The number of extra hours it will take her to reach her destination

Solution:

The remaining distance = 575 miles - 260 miles = 315 miles

[tex]Speed = \mathbf{ \dfrac{Distance}{Time}}[/tex]

[tex]Janelle's \ average \ speed = \dfrac{260 \, miles }{4 \, hours} = \mathbf{ 65 \, mph}[/tex]

[tex]Time = \dfrac{Distance}{Speed}[/tex]

Which gives;

[tex]Time \ to \ reach \ her \ destination = \dfrac{315 \, miles}{65 \, mph} = 4\frac{11}{13} \, hours \approx \mathbf{ 5 \, hours}[/tex]

The time it takes Janelle to reach her destination ≈ 5 hours

Learn more about average speed during motion here:

https://brainly.com/question/11241290

I need help on number four you were to multiply the phenomenals using the horizontal format first person to answer and have the correct answer will get Brainly please provide step-by-step explanation . Thanks so much I really appreciate it.!

Answers

Step-by-step explanation:

I hope this helps........

Represent 2/3,-4/5,1 3/4,-2 5/8,2 3/4,√5 in a number line

Answers

Answer:

go throw it get it try your best

Step-by-step explanation: you can do it

A decimal that is equal to the fraction 3/5?

Answers

Answer:

0.6

Step-by-step explanation:

i hope this helps! have a wonderful rest of ur day :)

Answer:

0.6

Step-by-step explanation:

help both a and b please explain how to do it that would help me out a lot so please help me with it​

Answers

Answer:

F(5, 7)

Step-by-step explanation:

Part A

Find the equation of AB using the coordinates of the endpoints:

A(- 1, - 1), B(2, 3)

Find the slope:

m = (3 - (-1)) / (2 - (-1)) = 4/3

Use one of the points and point-slope equation to get the line:

y - 3 = 4/3(x - 2)y - 3 = 4/3x - 8/3y = 4/3x + 3 - 8/3y = 4/3x + 1/3

Now find the y - coordinate of F when x is 5:

y = 4/3*5 + 1/3y = 20/3 + 1/3y = 21/3y = 7

Part B can't be solved as the picture is unclear

$27 for four large pizzas or $32 for five large pizzas

Answers

Answer: $27 for four large pizzas is cheaper than 32$ for five large pizzas

Step-by-step explanation:

Answer:

$32 for 5 pizzas

Step-by-step explanation:

Assuming you're trying to determine which option is the better deal, the first step would be to determine the price per pizza.

Option 1: $27 for 4 pizzas

$27 / 4 pizzas = $6.75 per pizza

Option 2: $32 for 5 pizzas

$32 / 5 pizzas = $6.40 per pizza

Option 2 is the better deal because each pizza costs less.

Brody's farm borders a river. He buys 1000 meters of fencing. What dimensions
maximize the area of the farm?

A.) 500 m x 250 m
B.) 750 m x 250 m
C.) 200 m x 300 m
D.) 100 m x 800 m

Answers

Answer:

A. 500 m x 250 m

Step-by-step explanation:

Answer:

the answer is A.

Step-by-step explanation:

I took the test, heheh. sorry, I don't actually have an explanation.

Please helpp 25 points pls

Answers

Answer:

It is either A or B           But I think/ Believe it is A

Step-by-step explanation:

Have a good day =)

Square ABCD is similar to square EFGH. The ratio of AB:EF is 1:4. The area of square EFGH is 14,000ft^2. What is AB?

Answers

Answer: 5sqrt(35)

Step-by-step explanation:

If the ratio of the side lengths is 1:4, since the ratio of the areas is the square of the ratio of the side lengths, the ratio of the areas is 1:16.

This means the area of square ABCD is 14000/16 = 875.

Therefore, AB=sqrt(875)=5sqrt(35).

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