Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

KuoministersBest ResponseYou've already chosen the best response.1
there is few ways of working this out. Elimination, Substitution and maybe multiplication
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
which way do you prefer?
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
i need my mind refreshed. whichever method works best is the method i choose.
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
ill use substitution then :P x = \[x = y  \frac{ 1 }{ 5 }\] 25x + ky = 4
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
25(y  \[25(y  \frac{ 1 }{ 5 }) + ky = 4\]
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
\[25y  5 + ky = 4\]
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
do you get it now?
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
howd u get y(1/5)?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
divide everything in the first equation by 5
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
there is no solution :)
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
ill use elimination now
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
times the first equation by 5 25x  25y = 5 25x + ky = 4
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
now add this equation vertically together. it would give you k=25
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
i probably shoulda phrased the question the way they have it on my hw. it says: Determine the value of k for which the system of linear equations has no solutions.
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
haha great :/ u say that now
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
you know why there is no solution? if you sub K = 25 it wont work
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
because they equal different things
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
\[\Huge{\color{Purple}{\\{\ \boxed{\mathbb{\text{}{}}{\color{green}{\color{blue}T{\color{purple}h{\color{pink}a{\color{red}nk}}}}}}}}} \] \[\Huge{\color{Purple}{\\{\ \boxed{\mathbb{\text{}{}}{\color{blue}Y{\color{green}o{\color{red}u}}}}}}} \]
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
haha no, THANK YOU ! :)
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
ok i have another one lol this one wants the k to have an infinite amount of solutions
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
49x49y=49 7x+ky=7
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
the answer is not 1,7,49,1/7, or 1/49.
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
sorry been bit busy
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
so do you have an idea where to start?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
i would times the 2nd equation by 7
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
do you undertand this yet lol?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
49x49y=49 7x+ky=7 49x49y=49 49x + 7ky = 49
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
dont know where to go from there
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
49y  7ky = 0 7y(7 + k) = 0
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
how do we get the k from that
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
im bit confused :P you sure their is more than 1 answer??
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
oh u said this one wants the k to have an infinite amount of solutions
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
1 K but infinite solutions we need the K
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
y(7 + k ) = 0 from this can you find K? im pretty sure you can :P
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
hint: you only need to look at this question to get K
 one year ago

mariomintchevBest ResponseYou've already chosen the best response.1
im feeling slooow ha
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
have fun with your maths
 one year ago
See more questions >>>
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.