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
Maurinko [17]
3 years ago
12

Solve the following system of equations: x − 2y = 14 x + 3y = 9

Mathematics
2 answers:
zheka24 [161]3 years ago
8 0

Answer:

<em>(12, - 1) </em>

Step-by-step explanation:

x - 2y = 14 ......... <em>(1)</em>

x + 3y = 9 ......... <em>(2)</em>

<em>(2) - (1)</em>

(x - x) + (3y - ( - 2y)) = 9 - 14

5y = - 5 ⇒ <u><em>y = - 1</em></u>

x + 3( - 1) = 9 ⇒ <u><em>x = 12</em></u>

<em>(12, - 1)</em>

nikdorinn [45]3 years ago
6 0
(12,-1) or x=12 and y=-1

EXPLANATION:
you set both equations equal to each other by subtracting the sum and adding it to the equation. once you set them equal to eachother (x-2y-14=x+3y-9)
you can solve by moving everything to one side by subtracting. once you get it all to one side you can start adding common numbers and variables and solve
You might be interested in
-4(4x-9)=2x<br> I need help
Stolb23 [73]

Step-by-step explanation:

-4(4x-9)=2x

-16x+36= 2x

-16x - 2x = -36

-18x = -36

x = 2

6 0
3 years ago
Read 2 more answers
A company manager for a tire manufacturer is in charge of making sure there is the least amount of defective tires. If the tire
Anestetic [448]

Answer:

0.347% of the total tires will be rejected as underweight.

Step-by-step explanation:

For a standard normal distribution, (with mean 0 and standard deviation 1), the lower and upper quartiles are located at -0.67448 and +0.67448 respectively. Thus the interquartile range (IQR) is 1.34896.

And the manager decides to reject a tire as underweight if it falls more than 1.5 interquartile ranges below the lower quartile of the specified shipment of tires.

1.5 of the Interquartile range = 1.5 × 1.34896 = 2.02344

1.5 of the interquartile range below the lower quartile = (lower quartile) - (1.5 of Interquartile range) = -0.67448 - 2.02344 = -2.69792

The proportion of tires that will fall 1.5 of the interquartile range below the lower quartile = P(x < -2.69792) ≈ P(x < -2.70)

Using data from the normal distribution table

P(x < -2.70) = 0.00347 = 0.347% of the total tires will be rejected as underweight

Hope this Helps!!!

6 0
3 years ago
Can you also explain how you got the answer
Alja [10]

Answer:

I recoment using the formula because its different ways its taught

Step-by-step explanation:

maybe look up different formula's

5 0
2 years ago
Read 2 more answers
Which table shows a proportional relationship?? help asap​
larisa [96]

Answer:

i wanna say its the first one if its wrong im very sorry

Step-by-step explanation:

5 0
3 years ago
In Triangle ABC, L is the midpoint of AB, M is the midpoint of BC, and N is the midpoint of CA.
VashaNatasha [74]
I’m not doing all that so yeah that’s my answer I
3 0
3 years ago
Other questions:
  • The softball team stopped for ice cream after a big game. five 2-scoop cones cost the same as three sundaes. If they bought nine
    8·1 answer
  • How do I draw a model for 63 divided 6
    5·1 answer
  • Factor 2x^2+4x+18 !!!!!
    8·2 answers
  • What is the distance between the following points? (no need for explanation)
    9·2 answers
  • For me and Thomas uhh
    7·1 answer
  • Will someone please help with this multiple choice question ?
    10·1 answer
  • PLEASE HELP ME!
    6·1 answer
  • Multiple Select
    13·1 answer
  • I really need help with this ​
    13·1 answer
  • What is the value of g 6
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!