solve the system of equations -4x- y = -18 and 2x + 3y = 24 by combining the equations

Answers

Answer 1

Answer:

x = 3

y = 6

Step-by-step explanation:

-4x- y = -18

2x + 3y = 24 (Multiply everything by 2)

-4x - y = -18

4x + 6y = 48

5y = 30

y = 6

-4x- y = -18

-4x - 6 = -18

-4x = -12

x = 3


Related Questions

A triangle has one side that is 31 inches long and a second side that is 44 inches long. The least possible length of the third side is_____ in. The greatest possible length of the third side is____in. (Please write the answer in whole numbers only)
BRAINLIEST!!!!!!!

Answers

Answer:

The lowest length on the third side is less that 30 and the largest is between 40 and 30

Step-by-step explanation:

Kahn starts a savings account with$14. He will put in an equal amount each week. After 7 weeks, he will have $56.
Rate of change per week_____
Initial value_____?
Help please

Answers

Answer:

The rate of change per week is $6.

Step-by-step explanation:

56 - 14 = 42

42/7 = $6

6 dollars were added each week.

A box in the shape of a triangular prism is painted for a project. Which formula would be used to find the lateral surface area of the triangular prism?

Answers

Answer:

LSA = (a+b+c)×h

Step-by-step explanation:

The formula that would be used to find the lateral surface area of the triangular prism = perimeter of base(P) × Height of prism(H)

Let us assume that three side of triangle are a, b, c and height of prism is h

Then lateral surface area of the prism can be LSA = (a+b+c)×h

find the area of the shaded region inside the rectangle hexagon given one of the side lengths is 8.

A 163
B 230
C 300
D 233.3

Answers

The answer is A if I’m not mistaken

GEOMETRY NEED HELP AS SOON AS POSSIBLE

Answers

Answer:

BAC=15

Step-by-step explanation:

angle BOA= 180-30= 150

triangle BAO is   isosceles because it has two equal sides, radii of a circumference so the angles ABO=BAO=(180-150)/2=15

What is the value of x?

Answers

Answer:

Step-by-step explanation:

Calculate the width of it,then add all the sides together.

Mr. Garcia deposited $2,500 in a new account at his bank.

The bank pays 6.5% interest compounded annually on this account.
Mr. Garcia makes no additional deposits or withdrawals.


Which amount is closest to the balance of the account at the end of 2 years?

A.$2,513.00

B.$2,662.50

C.$2,835.56

D.$2,825.00

Answers

Answer:

$2,825.00

Step-by-step explanation:

First, I found out what 6.5% of 2,500 is, so 6.5% x 2,500 = 162.5 . Then I did 162.5 x 2, which equals 325. I then added 325 to 2,500 and got 2,825.

GIVING BRAINLIEST HELP ASAP! please tell me how you did it so I can learn it

Answers

Answer:

Ok since u want to learn ill teach you :)

Get your 3 points and then your do this

Example= 3 power of 2 plus 5 power of 2

Then ur gonna add and get your answer hope this helps

(if u still don't get it ill just give u the answer)

7.2

Step-by-step explanation:

Hope u kinda got a good start on this :)

find the measure of each interior angle in a regular 18-gon

Answers

Answer:

A polygon with 18 sides has 18 interior angles. Therefore, to find the measure of one of these angles, divide the sum by 18. Answer: Each angle is 160 degrees.

Step-by-step explanation:

Hannah Earns $68.00 per hour She is given a pay rise of 10% Workout how much extra money she gets per hour​

Answers

hope that this helps!

Can somebody plz help answer these questions correctly (only if u done this before) thx :3

WILL MARK BRAINLIEST WHOEVER ANSWER THESE FIRST :DDD

Answers

Answer:

Shown Below

Step-by-step explanation:

WPT = 90

WPV =  30

VPT =  60

VPS = 90

RPS = 60

WPS = 120

QPS =  150

A club has members from three grades.
It has 36 members from sixth grade, 24 members from seventh grade, and 30 members from eighth grade.

What is the ratio of the club's seventh graders to eighth graders?

Answers

The ratio of seventh graders to eighth graders is 24:30 or 24/30. I hope I helped!

please help will mark brainliest

Answers

Answer: the answer is 29.3

Step-by-step explanation:

Part D:
240 out of 1200 adults in survey of Western states named cookie dough as their favorite. Use the double number line to find the percent of Westerners who liked cookie dough best. Please label each of the points on the top and bottom number lines that you use to find your answer.

Answers

1200/240=5

so 240 goes into 1200 5 times, just like 20% goes into 100% 5 times.

The answer would be 20%.

Hope this helps!

True of false: two expressions can only be equivalent if they share the same domain.

Answers

Answer

True I’d think

Step-by-step explanation:

Monica’s retirement party cost two dollars, plus an additional three dollars for every guess she invites. If there are 16 guests, how much will monica’s retirement party cost

Answers

Answer:

TWO BUCKS?? ballin on a budget

anyways, if there are 16 guests, the party would cost $50. sounds a lot more correct lol

Someone please help me on this question please. Don’t put a link. Please help me.

Answers

9514 1404 393

Answer:

  34 < x < 74

Step-by-step explanation:

Assuming we're concerned with a triangle, the third side must have a length between the difference and the sum of the two given sides.

  54 -20 < x < 54 +20

  34 < x < 74

What’s the scale factor?

Answers

Answer:

The scale factor is 1/4

Step-by-step explanation:

20/5 = 4

dude I don’t even know anymore

Answers

Answer:

just use the line on the graph :D

Step-by-step explanation:

f(6) =2

the maximum is 7

hope this helps!

IN
6
Ted can read 135 pages in 3 hours.
Which statement is true?
A The unit rate is 135 pages in 3 hours.
B
The unit rate is 45 pages in 1 hour.
The unit rate is 45 pages in
1
3
of an hour.
None of the statements are true PLEASE HELPPP MEEE ANSWERRR THIS QUESTION

Answers

Answer:

45 pages in 1 hour

Step-by-step explanation:

Find the unit rate by dividing the number of pages by the number of hours

135/3

= 45

This means he can read 45 pages in 1 hour.

The unit rate is 45 pages in 1 hour.

Which statement describes the relationship, if any, that exists between triangle KLM and triangle NPQ?

Triangle L K M. Side K L is 16, L M is 22, K M is 12. Triangle P N Q. Side P N is 8, N Q is 6, P Q is 11. Angles L and P are congruent, Q and M are congruent, K and N are congruent.
They are similar because their corresponding angles are congruent and their corresponding side lengths are in the ratio Three-halves from Triangle K L M to triangle N P Q.
They are similar because their corresponding angles are congruent and their corresponding side lengths are in the ratio StartFraction 2 Over 1 EndFraction from Triangle K L M to triangle N P Q.
They are not similar because their corresponding angles are not congruent.
They are not similar because their corresponding side lengths are not proportional.

Answers

Answer: Similar steps  because their corresponding angles are congruent and their corresponding side lengths are in the ratio 2 Over 1 from Triangle K L M to triangle N P Q.

Step-by-step explanation:

Answer:

it's b on edge

Step-by-step explanation:

What is the solution to the system of equations?
(-6,4)
(-5, 4)
(-3, -2)
(0, 1)

Answers

Answer:

(0,1) is the answer

Step-by-step explanation:

hope it helped!!!

Amanda is pumping water into an aquarium at a rate of 12 liters per minute the aquarium had 42 liters of water in it before she started her goal is given by 13x+42<_234 where x is the number of minutes she pumps water into the aquarium

Answers

Answer:

Let x represent minutes.

The inequality derived from the question is...

58 > 18 + 5x

Solve for x...

58 > 18 + 5x

58 - 18 > 5x

40 > 5x

40/5 > x

8 > x

So it will take more than 8 minutes to have 58 liters.

Step-by-step explanation:

HEKEIAINF AIUOSF AOFNK IO:SAB AIOSFBJK ASMEHELPPP

Answers

Answer:

Ummm give me a second let me solve this

Leon had 84 paper clips. He gave 3 4 of them to Joe. Joe gave 2 7 of what he received to Justin. How many paper clips did Justin get?
Please explain it in a statement way!

Answers

Given:

Leon had 84 paper clips.

He gave [tex]\dfrac{3}{4}[/tex] of them to Joe.

Joe gave [tex]\dfrac{2}{7}[/tex] of what he received to Justin.

To find:

How many paper clips did Justin get?

Solution:

Leon had 84 paper clips and he gave [tex]\dfrac{3}{4}[/tex] of them to Joe.

Number of paper clips Joe has = [tex]\dfrac{3}{4}\times 84[/tex]

                                                    = [tex]63[/tex]

Joe gave [tex]\dfrac{2}{7}[/tex] of what he received to Justin.

Number of paper clips Justin has = [tex]\dfrac{2}{7}\times 63[/tex]

                                                       = [tex]18[/tex]

Therefore, Justin has 18 paper clips.

Which of these is a statistical question?

A.How tall is the Willis Tower?
B.How many times has Mark visited the Willis Tower?
C.How many people visit the Willis Tower each day?
D.How tall is Mark?

Answers

Answer:

C

Step-by-step explanation:

What would x equal for this triangle side

Answers

Answer:

x=44

Step-by-step explanation:

180-89=91

180-91-45=44

x = 44 i believe.

explanation: 89 - 45 = 44

choices ;
a) AAS
B)ASA

Answers

AAS is the answer i hope this helps

When graphing a system of equations with one solution, the slopes of the two lines will be

Answers

Answer:

independent

Step-by-step explanation:

independent

Please answer this. I would greatly appreciate it
No links, no fake answers or your getting reported.

Answers

Answer:

11.1 feet

Step-by-step explanation:

When you are given a right triangle with a given angle and side, you can use

trigonometric functions to calculate missing side lengths or inverse functions for angles based on this information.

These ratios can be remembered by the mnemonic:

SOH CAH TOA.

S O H → Sin (Sine) = Opposite / Hypotenuse

C A H → Cos (Cosine) = Adjacent / Hypotenuse

T O A → Tan (Tangent) = Opposite / Adjacent

______________________________________

The Opposite side is the side directly across from the angle, The adjacent (next to) side is the side other than the hypotenuse or opposite side, and the hypotenuse is the longest side.

Given that we are trying to find the adjacent side, we must use the cos (cosine) function because that can be multiplied by the hypotenuse to give us the adjacent side we are looking for.

Therefore, 36 [Hypotenuse Side] × cos(72°) = Adjacent Side.

Because: 36 = Hypotenuse Side.

cos(72)° = Adjacent Side / Hypotenuse Side.

36 × cos(72°) =

36 × 0.309016994374... = 11.12461179749... ≈ 11.1

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