Mathematics High School

Find the solution to this system of equations and write it as an ordered
pair (x, y) *
3x + 3y = -18
2x - 4y= -6

Answers

Answer 1

Answer:

Step-by-step explanation:

Simplifying

3x + 3y = -18

Solving

3x + 3y = -18

Solving for variable 'x'.

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

Add '-3y' to each side of the equation.

3x + 3y + -3y = -18 + -3y

Combine like terms: 3y + -3y = 0

3x + 0 = -18 + -3y

3x = -18 + -3y

Divide each side by '3'.

x = -6 + -1y

Simplifying

x = -6 + -1y

//////////////

Simplifying

2x + -4y = -6

Solving

2x + -4y = -6

Solving for variable 'x'.

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

Add '4y' to each side of the equation.

2x + -4y + 4y = -6 + 4y

Combine like terms: -4y + 4y = 0

2x + 0 = -6 + 4y

2x = -6 + 4y

Divide each side by '2'.

x = -3 + 2y

Simplifying

x = -3 + 2y

Related Questions

∠FLA and ∠LATare supplementary angles. m∠FLA=(4x+8)° and m∠LAT=(6x+2)°. Find the measure of ∠FLA.

Answers

Answer:

m∠ABD= 22°

Step-by-step explanation:

Select the series of steps that could be used to accurately solve 3m - 5 = 16

A. 1. subtract 5 from the left side, leaving 3m = 11
2. multiply both sides by 3, leaving m = 33

B. 1. add 5 to both sides, leaving 3m = 21
2. divide both sides by 3, leaving m = 7

C. 1.subtract 5, leaving 3m = 11
2. divide by 3, leaving 3m = 11/3

Answers

B would be the correct answer. Hope this helps
b is the correct answer

Describe how you know if an equation has INFINITE solutions. Give some examples of an equation that has infinite solutions,

Answers

Answer:

When a problem has infinite solutions, you'll end up with a statement that's true no matter what. For example: 3=3 This is true because we know 3 equals 3, and there's no variable in sight. Therefore we can conclude that the problem has infinite solutions. You can solve this as you would any other question.

Step-by-step explanation:

Hope this helped.

Subtract.
(8t+7)–(2t+4)

Answers

6t+3 is the answer i’m pretty sure

3c + 2 = 3c + 2

please help me

Answers

Answer:

3c+2=2+3c

Step-by-step explanation:

1. Subtract 2 from both sides of the equation

3c + 2 = 3c + 2
3c + 2 - 2 = 3c + 2 - 2

2. Simplify by subtracting the numbers

3c + 2 - 2 = 3c + 2 - 2
3c = 3c

3. Subtract 3c from both sides of the equation

3c = 3c
3c - 3c = 3c -3c

4. Simplify by combining like terms

0 = 0

Answer: infinite solution

5 3/13 rounded to the nearest whole number

Answers

Answer:

the answer is 53

Step-by-step explanation:

Find the common ratio r for the geometric sequence and use r to find the next three terms. Enter your answer to four decimal places if necessary. 100, -40, 16, -6.4, The Common Ratio The next three terms are

Answers

Answer: The next three terms =2.56, - 1.024 and 0.4096

Step-by-step explanation:

Common Ratio of a Geometric sequence, R is calculated as

=a2/a1 = -40/100=-0.4

or a3/a2=16/ -40 = -0.4

such that the next three terms are

5th term =  -6.4 x -0.4=2.56

6th term= 2.56 x -0.4 =-1.024

7TH term= -1.024 x -0.4=0.4096

According to the food web, which organisms compete with the Zebra Mussel for food

Answers

Answer:

Mollusks

Step-by-step explanation:

This ain't math but you lucky I took marine biology.

Help!!!!! Giving out 15 points and a Brainliest to the person who answers correctly

Answers

Answer:

m∠TUW = 90, m∠VUR = 130, m∠VUW = 50

Step-by-step explanation:

Supplementary angles add up to 180!

what is 8=3a-4? please answer if you know it because the homework is for tomorrow.

Answers

Answer: a = 4

Step-by-step explanation: Hope this helps ^^

Answer:

a=4

Step-by-step explanation:

8=3a-4

+4     +4

12=3a

12/3

a=4

can you help me please ​

Answers

Answer:

151.4496 cm^2 is the area

There are 7 ted marbles. 7 blue marbles, and 7 green marbles.If a person randomly selects 1 marble from the bag, what is the probability that the person selects a blue marble.​

Answers

Answer:

there are an equal amount of all three colors of marbles in the bag, so the probability of selecting a blue marble is just 1/3.

Let me know if this helps!

1/3
There is 21 marbles and if you divided by 3 it gets 7.

7/21 is equal to 1/3

Therefore the possibility of picking a blue marble is 1/3.

There are 17 rows of seats in a cinema. There are 22 seats in each row. A film was shown in the cinema on friday night. Each ticket for a film cost £7.50. The sale of the tickets that night made was £2587.50

Answers

Answer:

29

Step-by-step explanation:

Here is the full question

There are 17 rows of seats in a cinema. There are 22 seats in each row. A film was shown in the cinema on friday night. Each ticket for the film cost £7.50

The sale of tickets for that night made £2587.50

How many tickets were not sold

Total number of seats = 17 x 22 = 374

Number of tickets sold = £2587.50 / £7.50 = 345

So 345 people filled 345 seats

Unoccupied seats = 374 - 345 = 29

Which graph represents f(x) = 6 cos (4pix)

Answers

Look at the picture below!!

If this helped mark me brainliest pls!!

4.
The table shows values for a linear function
X=-2,-1,2,3
f(x)=-3,-1,5,7

Answers

What do you want to do? A graph?

A grocery store sells 5 lemons in a bag for $2.00 what is the unit cost of each lemon in the bag?

Answers

Answer:

$2.00/5= 0.4

so 40 cents

Step-by-step explanation:

Answer:

$0.40

Step-by-step explanation:

help please i dont get this

Answers

Answer:

1. Not similar

2. Similar, ABC is similar to FED by SSS

Step-by-step explanation:

1. Not similar.

The interior angles of a triangle always have to add up to 180, and since the first triangle has angles 30 degrees and 90 degrees, you know the third angle will have to be 180 - 30 - 90 = 60 degrees.

The second triangle's third angle will have to be 50 degrees because 180 - 90 - 40 = 50 degrees.

Since the three angles of the triangle are not the same, they are not similar.

2. Similar, ABC is similar to FED by the SSS triangle similarity postulate.

First, AB is similar to FE because AB = 15 and FE = 5, so the scale factor is 3

Next, BC is similar to ED because BC = 9 and ED = 3, so the scale factor for these sides is also 3

Lastly, CA is similar to DF because CA = 12 and DF = 4, so the scal factor for this is also 3.

Since the scale factor for all of the sides is 3, these two triangles are similar.

Not similar. The interior triangles always have to add up to 180

please help me i dont know how to do this

Answers

13x-6+95=180
Combine like terms
13x=91
Divide by 13
X=7

Two base angles are supplementary/equal 180

As
MZLON = 113
mZMON = 2x +33°
M

mZLOM = 3x+ 20°
Find mZMON:
Pro

Answers

Answer:

Step-by-step explanation:

113= (2x+33)+(3x+20)

113=5x+53

60=5x

X=12

NOT DONE YET

substitute x value into MON equation to find angle measure

you get 57 degrees

The Park family was traveling to Disney World on vacation. They drove 487.5 miles in 7.5 hours. At this rate, how many miles did the Park family drive per
hour?

Answers

They drove 65 miles per hour

Help plz and thank have a nice day

Answers

This is for the first page

Answer: answer to question 17 is r=32/7, answer to question 18 is m=-12, answer to question 19 is k=-9, answer to question 20 is p= No solution, answer to question 21 is x= infinite solutions, answer to question 22 is x= -4.

Step-by-step explanation:

This picture is for the second page

The Lunar New Year is always celebrated in February true or false

Answers

Answer:

true

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

It is usually in January OR February.

So it's not always celebrated in February

expression equivalent to -3 - 8

Answers

Answer:-11

Step-by-step explanation: -3+-8=-11

A narrow rectangular banner is 3 inches wide. It is 4 times as long as it is wide.
Find the perimeter of the banner.

Answers

The perimeter is 30 inches.
Width is 3inches
Length is 3•4=12
12+12+3+3=30inches

The length of the minute hand is 150% of the length of the hour hand.
In 1 hour, how much farther does the tip of the minute hand move than the tip of the hour hand? Round your answer to the nearest
tenth.

Answers

Answer:

267.1

Step-by-step explanation:

dawn had 1/5 gallon of juice to divide evenly between 2 friends.How much juice should each friend receive?

Answers

Answer:

7.5 if 1/5 is 15. if not, its 0.6

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

you have to break the fraction into 1/3 so the 2 friends can evenly get that

if its wrong look at someone else

PLS HELP I WILL GIVE BRAINLIEST

Answers

Answer:

21 square feet

Step-by-step explanation:

To find out the area of this irregular figure, divide it into two rectangles and add their areas.. This can be done in two ways.

Version 1: 6 * 2 rectangle and 3 * 3 square

(6 * 2) + (3 * 3)

12 + 9

21 sq. ft.

Version 2: 5 * 3 rectangle + 2 * 3 rectangle

(5 * 3) + (2 * 3)

You could really just do 7 * 3 here.

7 * 3

21 sq. ft.

Either way, you still get 21 square feet as your answer.


Find the cincumference?

Answers

Circumference= π*diameter
So C=3.14*3.7
23.25 is the answer to the question if I’m correct

Max car holds 18 gallons of gasoline driving on the highway the car uses approximately 2 gallons per hour. let H represent the number of hours max has been riding on the highway. write an expression that shows how many gallons of gasoline Max has left after driving H hours. then find the number after max drives 3.5 hours on the highway.

Answers

y= 18 gallons-2(h)
y is what you're trying to find out and since there are 18 gallons in the tank after every hour you would have 2 less gallons. So, you can multiply how many hours he's been driving by the 2 gallons and subtract it from 18

What is the answer !?
Help please

Answers

C; 19,000. the equation would be pi (24/2)^2*42
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