x + 3y = 18
-X - 4y = -25

Answers

Answer 1
-y=-7
Y=7
-x-4(-7)=-25
-x+28=-25
-x=3
X=-3
Answer 2

Answer:

x = -3

y= 7

Step-by-step explanation:

x + 3y=18 ----(1)

-x - 4y=-25 -----(2)

from equation (1)

x = 18 - 3y ---(3)

putting equation (3) into equation (2)

-(18 - 3y) - 4y = -25

18 + 3y -4y = -25

3y - 4y = -25 - 18

-y = -7

y = 7 ✓

Putting y=7 into equation (1)

x + 3(7) = 18

x + 21 = 18

x = 18 - 21

x = -3 ✓


Related Questions

Which side has a length of 10 units?

Answers

Answer:

I'm not honestly for sure but i'm guessing the side G, J because it is the longest!

Hope this helps,

0Drink0Milk0

it is Gj your welcome it has to be

If n = 4, all of the following expressions are equivalent except _____.


16

n -2

Answers

Answer:16

Step-by-step explanation:

Answer:

The answer is 16.

Step-by-step explanation:

I hope this helps

In your own words, what is the least common multiple of two whole numbers? How can you find it?

Answers

Answer:

One way to find the least common multiple of two numbers is to first list the prime factors of each number. Then multiply each factor the greatest number of times it occurs in either number. If the same factor occurs more than once in both numbers, you multiply the factor the greatest number of times it occurs.

Step-by-step explanation:

That's how I do it.

An equation is written below.
3/4x-4 = -19
What is the solution to the equation?

Answers

Answer:

x = -20

Step-by-step explanation:

3/4x - 4 = -19

multiply by 4 to eliminate denominator

3x - 16 = -76

3x = -60

x = -20

HELP ASAP !!!Simplify.
(-2)^4(-2) -

Answers

Answer: -32

Step-by-step explanation: You can start by first changing the equation to (-2)^5. Then you just multiply -2 by itself 4 times to get -32.

Answer is -32 , good luck

What value does point P represent on the number line given?

PLZZZ HURRY

Answers

B) -3.8 is your answer!
The answer is -3.8
The second option

Find the center and the radius and the center of the circle with the given equations:

Answers

Answer:

3. (-1 , 3) , 4

4. (0 , -7), 8

Step-by-step explanation:

circle: (x-h)² + (y-k)² = r²

3. x²+2x+y²-6y-6 =0

  (x²+2x+1) + (y²-6y+9) -16 =0

  (x+1)² + (y-3)² = 4²

center(-1 , 3)      radius: 4

4. x²+y²+14y-15=0

   (x+0)² + (y²+14y+7²) - 64 = 0

   (x+0)² + (y+7)² = 8²

center: (0 , -7)     radius: 8

Answer:

3. Center = (-1,3)   Radius = 4

4. Center = (0,-7)   Radius = 8

use completion of squares to find the solution, if you do not understand what this means, there is a great video on utube by the channel Prep Expert that explains finding the center of a circle based on an equation.

I want to the answer for 7+2×4-8-4​

Answers

Answer:

3

Step-by-step explanation:

Using PEMDAS:

ParenthesesExponentsMultiplication ⇄ DivisionAddition ⇄ Subtraction

We can evaluate 7 + 2 × 4 - 8 - 4.

Start with multiplication:

7 + (2 × 4) - 8 - 47 + 8 - 8 - 4

Now we can add and subtract from left to right.

15 - 8 - 47 - 4 3

The answer to this problem is 3.

Answer:

Step-by-step explanation:

here because its an expression you use bodmas then you take 7+2= 9 take  9 times 4 = 36 take 36 minus 8 = 28 take 28 minus 4 = 24 this is the answer

please I BEG YOU! Find the ordered pair (x,y) if x+y=(5-x)+(5-y), x-y=(x-1)+(y-1).

Answers

Answer:

x=4, y=1

I think its that

Step-by-step explanation:

The sum of a number x and 8

Answers

Identify X first then I can solve this

3(x-2)+1=

I have to turn this in, in 10 minutes. Help.

Answers

Answer:

3x-6+1

Step-by-step explanation:

I know algebraaaaaa

X= 3/5, 3x-6+1, 3x-5, 3x=5, x=3/5

7.) One gallon is 4 quarts. Kai buys 2.5 gallons of milk at the store. How many quarts of milk did Kai buy?​

Answers

Answer:

10 quarts

Step-by-step explanation:

Help? Will give brainliest

Answers

Answer:

2) A

3) A

Step-by-step explanation:

2:

3y + 4x = 15

(divide 15 by 3 to get y by itself... then subtract 4 to the side with 15 so you have the proper equation)

y = 5 - 4x (when you graph it, the y intercept is 5)

3:

since x = -4y  ... you substitute that into the second equation

-4y + 5y = 2

then solve for y

y = 2

so now you substitute y into the first line

x = -4(2)

x = -8

helphelphelphelp im desperate

Answers

Answer: Option A.

Step-by-step explanation:

Simplifying

xy + -9z = 4

Solving

xy + -9z = 4

Solving for variable 'x'.

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

Add '9z' to each side of the equation.

xy + -9z + 9z = 4 + 9z

Combine like terms: -9z + 9z = 0

xy + 0 = 4 + 9z

xy = 4 + 9z

Divide each side by 'y'.

x = 4y-1 + 9y-1z

Simplifying

x = 4y-1 + 9y-1z

Which of the following segments is a radius of OK?

Answers

Answer:

A. line KM

Step-by-step explanation:

radius is half of the diameter

Answer:

A

Step-by-step explanation:

The radius of a circle is a segment from the centre to the circumference.

KM is a radius as it satisfies this criterion.

I need help please! Thank you

Answers

Answer:

2/5

Step-by-step explanation:

First, we substract the y variables.

y - 2 - y - 3 = 1

2(1) = 2

Then we subtract the bottom numbers.

5-2 = 3

The answer is 2/5

Answer:

y = 4

Step-by-step explanation:

Which answer shows 0.00897 written in scientific notation?
0.897 x 10-2
8.97 x 10-3
8.97 x 10-2
8.97 x 20 3

Answers

A. It has a decimal and a zero before it with the zero YOUD add it onto the answer which is 0.00897

Answer:A

Step-by-step explanation:

2.) Put these decimals in order from least to greatest:
2.03, 2.30, 32, 302, .032
NEWPA

Answers

Answer: .032, 2.03, 2.30, 32, 302

This is least to greatest. ζόμπα

Answer:

.032 .302 .32  2.03  2.30

Step-by-step explanation:

Amanda has 745 blueberries. She separated the blueberries into 5 equal groups. How many blueberries are in 2 of the groups?

Answers

Answer:

298

Step-by-step explanation:

5 equal groups of 745 would have 149 blueberries. You want to find how much is in 2 groups so you add 2 groups together, which is 149 + 149. That equals 298.

name some underrated animes i should watch.

Answers

Answer:

one i have is samurai flamenco

Step-by-step explanation:

its cool to me

Answer:

personally I think Death Parade is underrated.

Step-by-step explanation:

You should watch it

if you answer this u will get 10, and I will answer one of ur questions ONLY if ur right

Answers

Answer:c or 35

Step-by-step explanation:

Answer: 35%.

Step-by-step explanation:

35% of the students preferred hamsters as a favorite pet.

PLEASE HELP ITS DUE IN A FEW MINUTES

Answers

1. a+3a+4b=5b
2. a+3a=5b-4b
3. 4a=5b-4b
4. 4a=b
a=1/4b
(I think 1/4b is the answer) hope this helps :)

Answer:

a=5b-3a-4b

Step-by-step explanation:

We first need to move all terms that do not contain a to the right side of the equation. We cancel terms on the left side by adding -4b to both sides of the equation. a+4b-4b=5b-3a-4b

The length of a school bus is 12.6 meters. If 9 school buses park end to end with 2 meters between each one, what's the total length from the front of the first bus to the end of the last bus?

Answers

Answer:

129.4

Step-by-step explanation:

Calculation for what's the total length from the front of the first bus to the end of the last

First step is to multiply the given number of buses by the length of each one

Hence,

12.6 meters x 9 = 113.4 meters

Second step

Since there are 8 spaces in between we would multiply the 8 spaces by 2 meters

8 x 2 meters = 16

Now let calculate total length from the front of the first bus to the end of the last

16 + 113.4 meters =129.4

Therefore total length from the front of the first bus to the end of the last will be 129.4

The spinner shown is spun 300 times.
a) How many times would you expect the arrow
to stop on green if the spinner is fair?
The table below shows the number of times
the arrow stops on each colour.
Pink
Green
Colour
Frequency
Blue
45
Red
37
Purple
72
52
94
b) The spinner is spun once more.
Estimate the probability of landing on purple.
c) If the spinner is spun another 1000 times,
about how many times would you expect it to land on blue?

Answers

Answer:

A) 60

B) 72/300

C) 150

Step-by-step explanation:

A) P(green) = ⅕

⅕ × 300 = 60

B) purple: 72

45+37+52+94+72 = 300

Therefore, 72/300

C) 1000 × (45/300)

150

a, The number of times is 60.

b. The probability for landing should be [tex]72/300[/tex]

c. The number of times is 150.

Calculation of the number of times and probability:

Since

a. The spinner shown is spun 300 times

and, the probability of green should be like [tex]1/5[/tex]

So here one-fifth of 300 should be 60.

b. The probability is

First the total be like

= 45+37+52+94+72

= 300

Now the probability is

=  [tex]72/300[/tex]

C) The number of times should be

[tex]= 1000 * (45/300)[/tex]

= 150

Learn more about probability here: https://brainly.com/question/5680312

A $40,000 car depreciates in value about 18% per year for the life of the car. Determine the value of the car after 7,8, and 9 years. What is the rate of decay?

Answers

Answer:

Value after:

7 years = $9971.42

8 years = $8176.56

9 years = $6704.78

Rate of decay = 18%

Step-by-step explanation:

A $40,000 car depreciates in value about 18% per year for the life of the car.

Determine the value of the car after 7,8, and 9 years. What is the rate of decay?

The formula for Depreciation is

FV = PV( 1 - r)^t

Where

FV = Future value

PV = Present value = $40,000

r = Depreciation rate = 18% = 0.18

t = time in years

a) After 7 years

$40,000 (1 - 0.18)⁷

= $9971.4188227

= $9971.42

b) After 8 years

$40,000 (1 - 0.18)⁸

= $8176.5634346

= $8176.56

c) After 9 years

$40,000 (1 - 0.18)⁹

= $6704.7820164

≈ $6704.78

= $9971.42

The Rate of decay = 18%

HELP PLEASE!
An hour before show time, only 108 people are seated for a musical performance. According to the ticket sales, 97% of the people have yet to arrive. How
many tickets were sold for the musical performance?

Answers

Answer:

3600 tickets were sold for the musical performance.

Step-by-step explanation:

Given that:

Number of people seated for musical performance = 108

Percent to people to arrive yet = 97%

It means that the people who have already come are 3%.

Let,

x be the number of tickets sold.

3% of x = 108

[tex]\frac{3}{100}x=108\\[/tex]

0.03x = 108

Dividing both sides by 0.03

[tex]\frac{0.03x}{0.03}=\frac{108}{0.03}\\x=3600[/tex]

Hence,

3600 tickets were sold for the musical performance.

A_____consists of two endpoints.

Line Segment
Plane
Line
Point

Answers

The answer is line segment. :)

Help ASAP
5.(03.08)
Solve - 3x2 + 30% - 90 = 0. (2 points)
O x=5+216
O x=5715
X = 10+ 2115
O x= 10 + 15

Answers

Answer:

5 ± 2i5

from the quadratic equation

HELP ASAP EXPLAIN PLEASE

Answers

(A) The ratio is 6 to 1

HELP! circle theorems question - 25 points

Answers

Answer:

120°

Step-by-step explanation:

∠A+∠C = 180°

Or, 60° +∠C = 180°

Therefore, ∠C = 120°

Answer:

120

Step-by-step explanation:

hope that helps

Other Questions
pls help i will give u brainliest. Tara has a large box of dog treats that weighs 7.2 pounds. She uses the large box of dog treats to make smaller bags, each containing 0.6 pound of treats.How many smaller bags of dog treats can Tara make?Tara can make smaller bags. Find the 91st term of the arithmetic sequence 5, -14, -33, ... What is the resultant of the vectors shown? 14 steps decay series WILL MARK AS BRAINLIEST PLEASE HELP FAST What is the value of 4(3d-e)-2f if you were any type of fnaf charater who would you be and why? If the angle between the net force and the displacement of anobject is greater than 90 degrees, then which option holdstrue?aThe object stopsb Kinetic energy decreasesC Kinetic energy increasesd Kinetic energy remains the same Sneakers at Mr lou's garage sale cost the same price. alexander paid $90.52 for four pairs. How many pairs of sneakers did justin buy if he paid $135.78? write a proportion and use cross products to solve for d, the number of sneakers that David bought. According to the video, what types of education are useful for Database Administrators? Check all that apply.high school degreescollege degreescertificationcommunication workshopsDoneIntro Describe two features of the attempts to colonise Virginia in the 1580s. PLS HELP ASAP THIS IS DUE TODAY hey beautiful. I will try to give brainliest to whoever can answer this CORRECTLY thanks in advanced. how do I do a plot diagram In 1850, there were 564 textile mills in New England states with a total of 61,893 workers. The average wmployment per textile mill was ? Answer Choices109110108111 People with celiac disease suffer from inflammation of the small intestine from eating gluten. The villi get damaged in this process. What is a consequence of this condition?A. less absorption of nutrientsB. more absorption of nutrientsC. no solid waste exiting the bodyD. no hydrochloric acid breakdown of food DO NOT GIVE THE ANSWERSPlease explain the process on how to do it. please awnser the photo with the word anyone ?mknwonthisssss Which of the following metals can be used as a fuel?