1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dlinn [17]
3 years ago
10

Solve by using substitution or elimination by addition.6x - 5y = 722x + 6y = -22​

Mathematics
2 answers:
vazorg [7]3 years ago
8 0
Use a calculator called symbolab.com
katen-ka-za [31]3 years ago
8 0

Answer:

(7,-6)

x = 7, y = -6

Step-by-step explanation:

(1) 6x - 5y = 72

(2) 2x + 6y = -22

multiply equation (2) by -3

-3 (2x + 6y = -22)

-6x - 18y = 66

add equation (1) and the new equation:

6x + -6x = 0

-5y + -18y = -23y

72 + 66 = 138

---> -23y = 138

divide both sides by -23

y = -6

plug in y = -6 into equation (2):

2x + 6(-6) = -22

2x - 36 = -22

2x = 14

x = 7

You might be interested in
Reduce in standard form -3/-15​
andriy [413]

Answer:

1/5? 0.2?

Step-by-step explanation:

5 0
2 years ago
Write your answers as mixed numbers.
max2010maxim [7]
19/2=9 1/2

9 1/2 bottles
7 0
2 years ago
Read 2 more answers
A student researcher works at ski resort. For a student project, they would like to know whether the proportion of skiers on a p
Alex73 [517]

Answer:

One sample test of proportions

Step-by-step explanation:

Which test is most appropriate to test whether the proportion of skiers is not 0.50?

Since the test says to test whether the proportion of skiers is not 0.50, then here we will be studying just only the promotion of skiers without the comparison with snowboarders.

We have been given an hypothesized promotion and the test says to test against this proportion, so the appropriate test to use here is the one sample test of proportions

5 0
2 years ago
The scale of a model train is 1 inch to 13.5 ft. One of the cars of the model train is 5inches long. What is the length in feet
aleksklad [387]

Answer:

The length of the actual train's car is <u>67.5 feet.</u>

Step-by-step explanation:

Given:

The scale of a model train is 1 inch to 13.5 ft.

Now, to get the length of the actual car of the train.

Let the length of actual train's car be x.

And, the length of the car of model train = 5\ inches\ long.

<em>According to the scale of the model train, 1 inch is equivalent to 13.5 ft. </em>

<em>Thus, 5 inches is equivalent to </em>x.<em />

Now, to get the length of actual train's car using cross multiplication method:

\frac{1}{13.5} =\frac{5}{x}

By cross multiplying we get:

x=67.5\ feet.

Therefore, the length of the actual train's car is 67.5 feet.

7 0
3 years ago
What is 256 written as a power
Lapatulllka [165]
Written as a power of ten is 256.×10^0 or 2.56×10^1
7 0
3 years ago
Other questions:
  • One cell phone plan charges $20 per month plus $0.15 per minute used. A second cell phone plan charges $35 per month plus $0.10
    10·1 answer
  • Name the ordered pair that corresponds to an angle of a pi radians
    10·1 answer
  • Tyler simplified the expression x Superscript negative 3 Baseline y Superscript negative 9. His procedure is shown below.
    7·1 answer
  • Identify the number that does not belong with the other three. Explain your reasoning
    15·1 answer
  • Lilith is making a snack mix for her friends. The recipe shows the amount of each ingredient needed to make 88 bags. If Lilith f
    13·1 answer
  • PLS HELP ASAP!!!! I WILL GIVE BRAINLIEST!!!!!!!!!!
    15·1 answer
  • Help will give brainliest
    9·1 answer
  • Simplify the expression below. 4³–(3x²)³+ (x²)³
    6·1 answer
  • A company is designing a new cylindrical water bottle. The volume of the bottle will be 186 cm the height of the water bottle is
    15·1 answer
  • K^3-30k-18-4k^2/ (3+x)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!