A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Solve the following system using any method.
5x  2y = 16
3x + 5y = 22
(7, 2)
(4,2)
(4, 6)
No solution. The system is inconsistent.
Infinite number of solutions. The system is dependent.
 2 years ago
Solve the following system using any method. 5x  2y = 16 3x + 5y = 22 (7, 2) (4,2) (4, 6) No solution. The system is inconsistent. Infinite number of solutions. The system is dependent.

This Question is Closed

dumbsearch2
 2 years ago
Best ResponseYou've already chosen the best response.0Thanks in advance guys!!! :)

apple_pi
 2 years ago
Best ResponseYou've already chosen the best response.15x  2y = 16 3x + 5y = 22 OK for this two ways, well actually 3. First, put in x and y into both equations and see if it works. Do you know elimination?

apple_pi
 2 years ago
Best ResponseYou've already chosen the best response.1Well... eliminate either x or y by making the values of them in both equations the same. So for this one, I will eliminate x. The LCM of 5 and 3 is 15. In both equations we want 15x. Multiply the first equation by 3, and the second by 5 to get: 15x  6y = 48 15x + 25y = 110 Now Subtract one from the other: 15x  6y  (15x + 25y) = 48 (110) 31y = 62 y = 2 Now substitute y = 2 into any of the first equations. I'll choose eq 1 3x + 5(2) = 22 3x  10 = 22 3x = 12 x = 4 And there you have it

dumbsearch2
 2 years ago
Best ResponseYou've already chosen the best response.0Thank you so much!!! :)

apple_pi
 2 years ago
Best ResponseYou've already chosen the best response.1Your welcome. Do you know the other method? Substitution?

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.0Or you could use matrices...

dumbsearch2
 2 years ago
Best ResponseYou've already chosen the best response.0so much for your help! :)

dumbsearch2
 2 years ago
Best ResponseYou've already chosen the best response.0matrices? what dat? @Dido525

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.0Never mind then :P . Wait till linear algebra.
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.