use the substitution method to solve the system of equations. choose the correct ordered pair

Answer:

x = 3

y = 21

(3,21) and if u want slope it will be 7 :D

Step-by-step explanation:

y = 10x - 9

y = x + 18

1. Substitute for the y

10x - 9 = x + 18

2. Add 9 onto both sides

10x - 9 + 9 = x + 18 + 9

10x = x + 27

3. Subtract x on both sides

10x -x = x - x+ 27

9x = 27

4. Divide by 9 on both sides

9x/9= 27/9

x = 3

__________________________________________________________

Now that you have x, substitute that into one of the equations

y = x + 18

y = 3 + 18

y = 21

or  

y = 10x - 9

y = 10(3) - 9

y = 30 - 9

y = 21

there both the same

__________________________________________________________

x = 3

y = 21

Hope this helped!

Answer:

x +18 = 10x -9 (since they both = y, set them equal to each other. )

-9x +18 = -9 (subtract 10x from both sides, then subtract 18 from both sides)

-9x = -27 (divide both sides by -9 to isolate x)

x= 3 (take this and plug it into one of the equations to solve for y)

y = x +18 (i choose this one)

y = 3+18 (add)

y = 21 (take this and x and make a point and that's your answer)

(3,21) or C

Step-by-step explanation:

I hope this helps :)

PLEASE help i have tried to do this many times but still don’t understand

You run the same speed every day. Saturday you ran 4 miles in 32 minutes. On Sunday you ran 3 miles in m minutes.
36 minutes
12 minutes
28 minutes
24 minutes

Pls help me with this question.

Gerri is working on a project that need to be finish by Friday so far she has completed 1/3 of the project How much of the project does she have to finish By Friday . Answer is . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Can you solve this math minigame first?
Don't use a calculator.
Whoever gets the most right wins and gets brainliest
Goodluck
----------------
1 x 4
4 x 4
2 x 5
10 x 10
9 x 9
8 x 8
6 x 6
6 x 5
7 x 8
100 x 100 <= solve for THREE points

. An amusement park bought some arcade games that cost $2,000 each and photo booths that cost $3,200 each. A total of 22 of both types of machines were bought, for $53,600. How many arcade game machines did the park buy ?

evaluate 1/6t + 5/18 when t = 1/3

1/6(__)+5/18=_/_+5/18​

the post for Nancy's gazebo form a regular hexagon what is the measure of the angle formed at Each corner of the gazebo ​

What do 5a represent in f(x)=5ax​

Using the formula Distance = rate . time, find the distance covered by an airplane flying at 300 mph for 3 hours.

The equation A=p+prt is ued to find the accumulated amount, A, of an investment with principle, P, a certain interest rate, r, and over time, t. What is the value for r, after the equation is rearranged?

A. r= A+p/ pt
B. r= A-p/ pt
C. r= A-1/ t
D. r= A-p-pt

The manager of a local skate park wants to paint a skating ramp shaped like a
triangular prism blue. A net of the skating ramp is shown. The parts that will be painted
are shaded
How many square feet of space on the skating ramp will be painted blue?
660 square feet
480 square feet
420 square feet
260 square feet

I just need the answer to check and see if i got mine right.
Use the distributive property and combining like terms to simplify the expression:
6 (2+x+8)
The answer i got is: 60+6x
Am i right?

A child ate 30 grams of cereal for breakfast and her brother ate 40% more than that. How many grams of cereal did the brother eat?

What it 12/14<9=
I really need help on this :

Find the slope of the line represented by the data below

What is the slope of the equation y = 5x – 7?

A. 32
B. 23
C. 3
D. 2

I need hellp please help me

The diameter of a circle is 4 ft. Find its area in terms of π ​

Help pleasee! Thank uu

Bryan and Yuan started out at their houses and are biking towards each other. Bryan started
out first, and has already gone 5 miles. He bikes at a constant speed of 3 miles per hour.
Yuan just left, and rides at 4 miles per hour. When the boys meet halfway between their
houses, they will continue to the park together. How long will that take? How far will each
boy have ridden?

Evaluate the expression when a = 17 and c = 7.
²
a+c
a-2c

A bottle of 150 vitamins costs $5.25. If the cost varies directly with the number of vitamins in the bottle, what should a bottle of 250 vitamins cost?

Can someone help me, if u can ty bless you.

I need help with Geometry

what expressions are equivalent to 4×3/10​

The following data points represent the number of red candy pieces in each of Nate's bags of candy.
4, 7, 11, 11,2,5,8
Using the data, create a histogram

Evaluate y=−4x+3, for x=4.

anyone know the answer to number 11? there’s only 2 options and you can see them in the picture.

URGENT! PLEASE HELP ME!
Martin had read 70% of a book. He has 3 more pages to finish. How many pages are there in the book?