How many solutions does the system have?
x-2y = 6
3x - 6y = 18

Answers

Answer 1

Answer:

x=6+2y

Step-by-step explanation:


Related Questions

The diagram shows a right-angled triangle.
17 cm
hcm
40°
What is the value of h?
Give your answer correct to 1 decimal place.

Answers

Answer:

h = 20.3 cm

Step-by-step explanation:

Apply trigonometric ratio formula to find h.

Reference angle = 40°

Opposite side length = 17 cm

Adjacent side = h

Thus:

Tan (40) = 17/h

h × tan (40) = 17/h × h (multiplication property of equality)

h × tan(40) = 17

(h×tan(40)/tan(40) = 17/tan(40) (division property of equality)

h = 20.3 cm (1 decimal place)

Which of the following is the solution to the inequality −2x+4<20 ?

Answers

Answer:

x is less than or equal to 16

Step-by-step explanation:

- 2 x x + 4 < 20

Isolate the variable

divide 2 from 2 = 0

x + 4 < 20

x is less than or equal to 16

Please help I’ll give you guys brainiest!

Answers

Answer:

90

Step-by-step explanation:

15 x sin(30)=?/15 x 15

Answers

Answer:

The exact value of

sin

(

30

)

sin(30) is

1

2

12.

15

1

2

15⋅12

Combine

15

15 and

1

2

12.

15

2

152

The result can be shown in multiple forms.

Exact Form:

15

2

152

Decimal Form:

7.5

7.5

Mixed Number Form:

7

1

2

712

Step-by-step explanation:

Cameron and Cadena go out to eat for lunch. If their food and beverages cost $22.50 and there is a 9% meals tax, how much is the bill?

Answers

Answer:

22.59

Step-by-step explanation:

Answer: 24.53

22.50 x 9% = Unknown = ?

22.50 x 0.09 = 2.03

22.50 + 2.03 = 24.53

Answer/ Total Cost = 24.53

Step-by-step explanation: I Hope this helps you!

I will give BRAINLIEST PLS HELP y = x + 1/2 and z = 2x - 3, which of the following is equivalent to y + yz?
A. 2x^2 - x - 1
B. 2x^2 - x - 2
C. 2x^2 - x - 1/2
D. 2x^2 - 2x - 3/2

Answers

Answer:

try B. 2x^2 - x - 2

Step-by-step explanation:\

Cant realy give step by step- i just know

The solution 2x² - x - 1 is equivalent to expression y + yz.

What are Arithmetic operations?

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.

The operator that performs the arithmetic operation is called the arithmetic operator.

Operators which let do a basic mathematical calculation

+ Addition operation: Adds values on either side of the operator.

For example 12 + 2 = 14

- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.

for example 12 -2 = 10

* Multiplication operation: Multiplies values on either side of the operator

For example 12*2 = 24

Given expression as :

⇒ y + yz

y = x + 1/2 and

z = 2x - 3

Substitute the values of y and z in the expression y + yz,

⇒ x + 1/2 + (x + 1/2)(2x - 3)

⇒ x + 1/2 + x(2x - 3) + 1/2(2x - 3)

⇒ x + 1/2 + 2x² - 3x + x - 3/2

Rearrange the like wise term and apply the arithmetic operations,

⇒ 2x² - 3x + x + x + 1/2 - 3/2

⇒ 2x² - x - 1

Hence, the solution 2x² - x - 1 is equivalent to expression y + yz.

Learn more about Arithmetic operations here:

brainly.com/question/25834626

#SPJ2

Where do I plot the dots at?

Answers

Answer:

at 5 and 5

Step-by-step explanation:

WIIILLLLLLLLLLLLLLLLL GIVE BARAINLIEST!

Which of the following processes in the water cycle causes the formation of clouds?condensation evaporation infiltration transpiration

Answers

Answer:

hey does this look good trying to hide a busted lip lol

Step-by-step explanation:

let's just say that me and my brothers got into a fight but I won XD

It is A: Condensation.

Step By Step Explaination:

Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is a apart of the  water cycle because it is responsible for the formation of clouds.

What are the answer's to these 4 questions ​

Answers

Answer:

Yes

5,5

Y

Step-by-step explanation:

4 of 4
The ratio of money in Brian's wallet to Colin's wallet one day was 7:2.
Brian spent £39 that day.
Brian now had £4 less than Colin.
How much did they initially have altogether?

Answers

Answer:

£30

Step-by-step explanation:

Let Brian initially had money in his wallet = £x

and Colin had the money = £y

Since ratio of money in Brian's wallet to Colin's wallet was 5 : 1

Therefore,  

⇒ x = 5y -------(1)

Brian spent £27 that day, so money left with him = £(x - 27)

After spending the money Brian had £3 less than Colin.

(x - 27) = (y - 3)

x = y + 27 - 3

x = y + 24 -------(2)

Now we equate the equations (1) and (2) for the value of x,

5y = y + 24

5y - y = 24

4y = 24

y = £6

From equation (2),

x = 6 + 24

x = £30

Therefore, Brian initially had £30.

i hope this helps

Explain how solving -7y > 161 is different from solving 7y > -161.

Answers

Answer:

what the person above me said is correct :)

Step-by-step explanation:

Answer:

Both inequalities use the division property to isolate the variable, y. When you divide by a negative number, like –7, you must reverse the direction of the inequality sign. When you divide by a positive number, like 7, the inequality sign stays the same. The solution to the first inequality is y > -23, and the solution to the second inequality is y <>

Step-by-step explanation:

1/5w+7=−2​ what the number of W

Answers

Answer:

w = -45

Step-by-step explanation:

1/5w + 7 = -2

Subtract 7 from both sides.

1/5w = -9

Get w alone. To get w alone, divide 1/5 from both sides. You can also multiply 5 to both sides which is basically the same as dividing by 1/5.

w = -45

Which expression is equivalent to 20+64?
4+(16+60)
4 + (5 + 16)
4(16+60)
4(5 + 16)

Answers

Answer:

4(5+16)

Step-by-step explanation:

21 x 4 is 84 and the 20+64 is 84

-9x+1=-80 step by step plz

Answers

Answer:

Step-by-step explanation:

-9x+1=-80

first subtract 1 from both sides

-9x=-81

we divide by -9

x=9

Lin runs 12 laps around a track in 6 minutes. How many laps per minute is that? *

Answers

Step-by-step explanation:

6 min => Run 12 laps around the track

1 min => 12/6 = 2 laps around the track

Therefore Lin runs 2 laps per minute.

Answer:

2 laps per minute

Step-by-step explanation:

What we know:

Lin runs

12 laps

in 6 minutes

Laps per minute = [tex]\frac{Laps}{Minute} = \frac{12 laps}{6 minutes} = \frac{12}{6} = 2 \frac{laps}{minute}[/tex]

What does X equal?

2x + 2 = 4x + 4

Answers

Answer:

x = -1

Step-by-step explanation:

Given

2x + 2 = 4x + 4 ( subtract 4x from both sides )

- 2x + 2 = 4 ( subtract 2 from both sides )

- 2x = 2 ( divide both sides by - 2 )

x = - 1

what is the y ) y + (-20) = -16

Answers

Answer:

the value of y should be 4

Step-by-step explanation:

hope it help

A 3-yard roll of aluminum foil costs $1.71. What is the price per foot?

Answers

Answer:

.19 ¢

Step-by-step explanation:

1.) Multiply

There are 3 feet in one yard. And there are 3 yards. So,

3 x 3 = 9

2.) Divide

1.71 ÷ 9 = .19

3.) Check answer

.19 x 9 = 1.71

So it cost .19¢ per foot.

Hope this helps you out : )

In 8 weeks, a hair salon gave 1,536 haircuts. The salon gave the same number of haircuts each week. How many haircuts did the hair salon give each week?

Answers

Answer:

192 haircuts

Step-by-step explanation:

Given that,

In 8 weeks, a hair salon gave 1,536 haircuts.

We need to find how many haircuts did the hair salon give each week.

8 weeks = 1,536 haircuts

1 week = (1,536 /8) haircuts

= 192 haircuts

Hence, the hair salon gives 192 haircuts each week.


What is divided by 5/8 divided by 1/4 ?
A) 2/5 B) 3/4 C) 1 1/4 D) 2 1/2

Answers

Answer:

D: 2 1/2

Step-by-step explanation:

Answer:

the correct answer is.

A. 2/5

There were 15 bunnies at the pet store. Each of the 5 female bunnies had 5 babies! How many bunnies are there in the pet store now?

Answers

Answer:

45??!

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

If there were 15 bunnies 5 were females so there is 10 men and if each female had 5 babies each then that would be 25 babies plus the 10 men should be 35

A.
B.
C.
D. please help

Answers

Answer:

D

Step-by-step explanation:

-1 + -5 is -6.

Am confused please help if possible

Answers

Answer:

-3/4

Step-by-step explanation:

to get the slope use u need two points and substitute them into

slope (m) = [tex]\frac{y2-y1}{x2-x1}[/tex]

the two clearest points here are the y-intercept:(0,6) and x-intercept:(8,0)

m= [tex]\frac{6-0}{0-8}[/tex] = -3/4

what is 1738-69+42+1738+pie-69+21

Answers

Answer:

3404.14159

Step-by-step explanation:

just use a calculator to add every thing together

Answer:

3404.14159265

Step-by-step explanation:

Calculator

Brainliest please!

5 Addition Problems that gives u 100

Answers

99+1
98+2
97+3
96+4
95+5
94+6


Good luck!!

Answer:

here you go

Step-by-step explanation:

50 + 50

75 + 25

60 + 40

90 + 10

80 + 20

64 + 36

18 + 82

70 + 30

45 + 55

Hope this helps!

I gave extra for learning purposes

i need some help!
x+2=-14-x

Answers

x + 2 = -14 - x


1st: Add x to both sides

2x + 2 = -14

Subtract 2 from both sides

2x = -16

Divide by 2 (to get x by itself)

x = -8

Mia can finish her math homework in 30 minutes. Every night there are 45 problems for homework. How many problems can she finish in 4 minutes?​

Answers

I believe that it would be 75


answer fast pls iiiiiiiiiiiijhgghjjhffgjjhhgfffgggfgggffffffffghh

Answers

I think the answer is D.
Hope this helps <3

what is the x-intercept of the line 5x-2y=10

a.5
b.0
c.2
d.-10

Answers

It’s five because of 5x

adam can read 4 pages in 10 minutes. if adam reads at a constant rate, wich equation can be used to model the relationship between the number of pages he can read, p in t minutes?

Answers

Answer:

p=2.5t

Step-by-step explanation:

p stands for pages

2.5 is how long it takes him to read 1 page

t is the time

the reason why the t is next to 2.5 is so when you replace t with the actual time, you would multiply it by 2.5 to get how many pages he read in any amount of time

Other Questions
Steve receives a $1.50 raise from $8.25 and also insurance benefits. If he works 43 hours in week one and 30 hours in week two, and his totaldeductions arer $375.00, what is his GROSS PAY and NET PAY? Why was Italy in chaos following WWI?Returning veterans faced unemploymentBad economy/high taxesMany political parties/factionsAll of the above what is barrys and melissas gross earnings ? Please select the word from the list that best fits the definition.edu sites- Safe Sites- Unsafe Sites 2y - 8x - 20In slope Can something stay at one point and still be in motion? Why or Why Not? a car has a mass of 1000kg and accelerates at 2 meters per second per second. what is the magnitude of the net force exerted on the car. y = -x+4y = 2x+1solve the system of equations Graph three points for y=x+2 Use Order of Operations to simplify. 8 + 7(423) Solve for x. 2/3x=4/9 a x = 8/27 b x = 2/3 c x = 2 d x = 3 How did the Redeemers restrict the rights of African Americans? A toy plane with a mass of 20 kg is flying at 10 m/s. What is its kinetic energy?A. 1 000 JB. 200 JC.2 000 JD. Cannot be determined The visible characteristics of an organism, such as hair color, describes thethat organism.O PhenotypeO Genotype During lunch on Friday, 45 students in the 7thgrade chose pizza. This represented 25% of theseventh-grade class. How many students are in theentire 7th grade class? 25% of 16 is < > or = to 20% of 25 what is the name of the super continent? I built a model plane. It is breakable, so I am very careful when I hold it. If I drop it, I will have to rebuild it.Which sentence explains how the context clues help you check your prediction that rebuild means "build again?If you break something that you built, you will have to build it again.If you enjoy building planes, you will probably want to build another plane.The plane does not break easily, so it is very strong. A square playground has an area of 400 square feet. What is the length of each side of the playground in what ways can you develop your arguments? sentence pls