Solve the system of linear equations by substitution. y=2x-3 y=-x+9

Answers

Answer 1

Answer:

x=4, y=5. (4, 5).

Step-by-step explanation:

y=2x-3

y=-x+9

----------

2x-3=-x+9

2x-(-x)-3=9

2x+x=9+3

3x=12

x=12/3

x=4

y=2(4)-3=8-3=5


Related Questions

cashews cost $5.00 a pound and pecans cost $7.00 per pound. Julie bought a 3 pound mixture of cashews and pecans for $19. How many pounds of each were in the mixture ?

Answers

I think the person above me is correct

10x + 38
40 + 7x
determine the value of x

Answers

Answer:

x= 2/3

Step-by-step explanation:

if they are equating,

10x +38 = 40+7x

10x-7x = 40-38

3x = 2

x= 2/3

Answer:

x = 0.6666666667

Step-by-step explanation:

Simplifying

10x + 38 = 40 + 7x

Reorder the terms:

38 + 10x = 40 + 7x

Solving

38 + 10x = 40 + 7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7x' to each side of the equation.

38 + 10x + -7x = 40 + 7x + -7x

Combine like terms: 10x + -7x = 3x

38 + 3x = 40 + 7x + -7x

Combine like terms: 7x + -7x = 0

38 + 3x = 40 + 0

38 + 3x = 40

Add '-38' to each side of the equation.

38 + -38 + 3x = 40 + -38

Combine like terms: 38 + -38 = 0

0 + 3x = 40 + -38

3x = 40 + -38

Combine like terms: 40 + -38 = 2

3x = 2

Divide each side by '3'.

x = 0.6666666667

Simplifying

x = 0.6666666667

PLEASE HELP IM ON A TIME LIMIT

What is the location of point D

(6, 0)
(-6, 0)
(0, -6)
(0, 6)

Answers

Answer:

The answer is (0,-6)

Answer:(0, -6)
Explanation: it goes over 0 that’s how you know the x and it goes down -6 that’s how you know the y

A person walks 1/7 mile in 1/12 hour. the persons speed is _ miles per hour

Answers

Answer the a person walked 1.344 per 1/12

Step-by-step explanation:

I need help with this problem-1 1/5 + (-3/5)

Answers

Answer:

-1 4/5

Step-by-step explanation:

please help I am not sure what the answer is

Answers

The answer is c hope this helps
Hello
The correct answer is c.
I think

what is 4 x 4 for point yeehaww

Answers

16. Thank you so much!

Answer: 16.

Step-by-step explanation:

Michelle compares 5.8 x 106and 2.32 x 107. What steps could she use to compare the two numbers?

Answers

Answer:

5.8 × 10^(6) is greater.

Step-by-step explanation:

The 2 numbers she wants to compare are;

5.8 × 10^(6) and 2.32 x 10^(7)

Now,for her to compare easily both numbers will need to have the same powers of 10.

To this effect, let's convert the power of ten of the second number to the power of 6.

We will divide by 10 to get it.

Thus; 2.32 x 10^(7) ÷ 10 = 0.232 × 10^(6)

Comparing 0.232 × 10^(6) to 5.8 × 10^(6), we can see that they have same power of 10 but the greater number that precedes the power of 10 is 5.8.

Thus, 5.8 × 10^(6) is greater.

4 4/5 as improper fraction

Answers

Answer:

The answer is [tex]\frac{24}{5}[/tex]

Hope this helps :)

-ilovejiminssi♡

Michael owns his own business selling hand-crafted birdhouses. He sells each birdhouse for $22.
He charges $8 for shipping no matter how many birdhouses a person orders. A customer ordered
birdhouses with a total bill of $206, including shipping. Write and solve an equation to determine
how many birdhouses this customer ordered.

Answers

Answer:

9 birdhouses

Step-by-step explanation:

x = # of birdhouses

22x + 8 = 206

22x = 198

x = 9

A water tank holds 657 gallons but is leaking at a rate of 4 gallons per week. A second water tank holds 876 gallons but is leaking at a rate of 7 gallons per week. After how many weeks will the amount of water in the two tanks be the same?


NEED THIS DONE ASAP!!!!!

Answers

Answer:

hola

Step-by-step explanation:

hablas español hablas con la que pidio ayuda y tu hablas español

Each of 8 students reported the number of movies they saw in the past year. This is what they reported: 18, 10, 20, 18, 12, 19,12, 11 find the mean and median number of movies that the students saw

Answers

Answer:

I. Mean = 15

II. Median = 15

Step-by-step explanation:

Given the following data;

Total number of students = 8

x = 18, 10, 20, 18, 12, 19,12, 11

F(x) = 18 + 10 + 20 + 18 + 12 + 19 + 12 + 11

F(x) = 120

To find the mean;

Mean = F(x)/n

Mean = 120/8

Mean = 15

To find the median;

Median refers to the middle number of a sorted data.

x = 10, 11, 12, 12, 18, 18, 19, 20

Middle numbers = 12 and 18

Median = (12 + 18)/2

Median = 30/2

Median = 15

Pls help with #6 pls pls!!!

Answers

Answer:

Answers in explanation.

Step-by-step explanation:

Finding angle 1:

52 + angle 1 = 180

angle 1 = 128

Finding angle 2:

128 (angle 1) + angle 2 = 180

angle 2 = 52

Finding angle 5:

52 + 47 + angle 5 = 180

angle 5 = 81

Finding angle 3:

angle 2 + angle 3 + angle 5 = 180

52 + angle 3 + 81 = 180

angle 3 = 47

Finding angle 4:

angle 3 + angle 4 = 180 OR angle 4 + 47 = 180

47 + angle 4 = 180

angle 4 = 133

I have a spinner that is divided into 4 equal sections colored red, blue ,green, and yellow . If I spin the spinner twice ,What is the probability that I will randomly select a blue marker, put it back, then randomly select a purple marker ?

Answers

Answer:

1/16

Step-by-step explanation:

(1/4) (1/4)

who ever answers this question gets brainy

Answers

Answer:

it is B because the answer is 14 so that why it is B

Guys what are some characteristics of this house I can’t think of any other than secluded i’ll give you brainliest.

Answers

Answer:

Red spanish roofs, verdant garden, suburban, polished, and quaint.

That good enough, haha?

neat, pristine, cookie-cutter, well-kept, groomed, welcoming

A car dealership pays $8,350 for a car. They markup the price by 17.4% to get the retail price. What is the retail price of the car at this dealership?

Answers

Answer:

I belive its $9,802.9

Step-by-step explanation:

$8,350 x 0.174 ( 17.4 ÷ 100)

= $1,452.9

$8,350 + $1,452.9 = $9,802.9

Solve the equation for the red variable

Answers

Answer:

Step-by-step explanation:

Solve for m (which represents mass):

          e

m = --------

        c^2

Find the area of the following circle​

Answers

Diameter = 28 cm. Radius = D/2 = 14 cm. Hence the area of the given circle is 616 cm².

Which value is closest to
f-1(-3)
What’s the answer

Answers

I’m not sure but I hope this helps

Multiply -1 by -3
So the answer is f+3

Eric needs to cut a board into 6 equal pieces. The board is 4 feet long.
How long will each piece be?

Answers

Answer: 24 feet long or 10 feet long.

Step-by-step explanation: I Hope this helps Have a Blessed day.

what is the slope (2,6) (-1, -5)

Answers

answer is 11/3.

HOPE THIS HELPS
mark me brainleist pls

Please help! I also need the steps!

Answers

Answer: -58
Explanation: Evaluate the exponent
−64 x 3/4 -10
Then you Multiply the numbers
—64x3/4 -10
-48-10

Subtract the numbers
-58

And -58 is the solution

when we ordered pizza, 75% of the class wanted pepperoni. of 21 people wanted pepperoni, how many people are in the class

Answers

Answer:

28 people

Step-by-step explanation:

Answer:

28

Step-by-step explanation:


Jordan's dog weights p pounds. Emmett's dog weighs 50% more than Jordan's dog.
Which expressions represent the weight, in pounds, of Emmett's dog?

Answers

the expression fir the weight  of Emmett's dog is 1.25p

Step-by-step explanation:

The weight of Jordan's dog is p pounds.

And it has been given that Emmett's dog weighs 25% more than Jordan's dog.

Hence, 25% of weight of Jordan's dog is

25% of p

= 0.25p

Now, since, Emmett's dog weighs 25% more than Jordan's dog.

Hence, the weight  of Emmett's dog is given by

Weight of  Jordan's dog + 25% of weight of Jordan's dog

= p + 0.25p

=1.25 p

Therefore, the expression fir the weight  of Emmett's dog is 1.25p

9 inches of rain in 72 hours as a unit rate.

Answers

Answer:

.125 :)

Step-by-step explanation:

hellpppppppppppppp pleaseeee

Answers

Answer:

x=3+√2 or x=3−√2

Step-by-step explanation:

For this equation: a=1, b=-6, c=7

1x2+−6x+7=0

Step 1: Use quadratic formula with a=1, b=-6, c=7.

x=

−b±√b2−4ac

2a

x=

−(−6)±√(−6)2−4(1)(7)

2(1)

x=

6±√8

2

x=3+√2 or x=3−√2

60.5 feet
16 feet
75.5 feet
How many squares of grass will need to be ordered to fill the entire park

Answers

Answer:

73084

Step-by-step explanation:

60.5*16*75.5

968*75.5

73084

Mary got a sales job at her father's company. She was paid $9 per hour plus a 5%commission on her sales. Last week sheworked 40 hours with sales of $5560. How much was she paid?

Answers

Answer:

Mary was paid $638

Step-by-step explanation:

Mary was paid 360 $ for working alone because

$40 * 9 = $360

Mary was paid $278

5 % * $5560 = $278

360 + 278 = 638 $

Nola was selling tickets at the high school dance. At the end of the evening she picked up the cash box and noticed a dollar lying next to it. She said, "I wonder whether the dollar belongs inside the cash box or not." The price of tickets for the dance was 1 ticket for

Answers

Answer:

The $1 belongs to the cash box

Step-by-step explanation:

Given

See attachment for complete question

Required

Determine if the $1 belongs to the cash box or not

Represent singles with s and couples with c.

From the attachment, we have:

[tex]s + c = 47[/tex] --- total attendance

[tex]5s + 4c =200[/tex] --- ticket sold

Solve for s and c.

Make s the subject in (1)

[tex]s = 47-c[/tex]

Substitute 47 - c for s in (2)

[tex]5(47 - c) + 4c = 200[/tex]

Open bracket

[tex]235 - 5c + 4c = 200[/tex]

[tex]235 - c = 200[/tex]

[tex]c = 235 - 200[/tex]

[tex]c = 35[/tex]

This means that the total individual which makes up the couples are 35. This is not possible because couples are in 2's and the total should be an even number.

So, we can conclude that the $1 belongs to the cash box

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