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

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
use elimination method
 one year ago

Mr.Me Group TitleBest ResponseYou've already chosen the best response.0
add down using elimination method
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
add solve for x then solve for y I think it will be easier
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
multiply both side of x+y=4 by 5 and multiply both side of 2xy=5 by 4
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
I think adding two equation will give you in x terms only... no ned to go in a roundabout way
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
Thank you SO MUCH! all of you @gerryliyana @Rosh007 @Mr.Me I appreciate 100% :p
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
welcome :)
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
welcome..so u got it... O glad..
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
Is the answer suppose to be a decimal tho??
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
because i got 0.3333333333.. etc.
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
what did u get it??
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
show in 1/3
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
by using the elimination method ... Oh okay @gerryliyana then plug that in to x in x+y=4 ?
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
yes... first you nd to eliminate one variable... sinc there are two equations and two unknowns.. it would is possible... but you won't get 0.3333.. in this case
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
NO!!! you have two use the equations which are available to you
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
What would it be @Rosh007 because thats what i got, am i doing it wrong then??
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
ur right @JessNicole
 one year ago

jazy Group TitleBest ResponseYou've already chosen the best response.0
Try using substitution and see if you got the same as me. (:
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
@jazy you made a mistake here Solve for x in the first equation. x + y = 4 Subtract y. x = 4  y Substitute the value of x into the second equation. Solve for y. 2(4  y) = 5  mistake
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
be careful @jazy 2(4  y) = 5 ???? the right is 2(4  y)  y= 5
 one year ago

jazy Group TitleBest ResponseYou've already chosen the best response.0
Oh okay now I see.
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
@jazy THANK YOU!!! it makes sence but @Rosh007 how is it a mistake?
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
be careful @jazy the mistake at 2(4  y) = 5 ???? the right is 2(4  y)  y= 5
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
@JessNicole please look gerryliyana's reply
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
Ohh okayy, i see now soo, it'd be Distribute 8y=5?? @Rosh007 and @jazy ??
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
jazzy missed one y there
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
@gerryliyana Thank youuuu!!:) for catching that mistake, i fixed it on my paper!
 one year ago

jazy Group TitleBest ResponseYou've already chosen the best response.0
I prefer substitution. x + y = 4 2x  y = 5 Solve for x in the first equation. x + y = 4 Subtract y. x = 4  y Substitute the value of x into the second equation. Solve for y. 2(4  y)  y = 5 Distribute. 8  2y  y= 5 Subtract 8. 2y  y = 3 3y = 3 Divide both sides by 3. y = 1 Now plug in the value of y(1) into any equation to solve for x. x + y = 4 x + 1 = 4 Subtract 1 x = 3  So x = 3 and y = 1
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
@gerryliyana What would it be then?
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
2(4  y)  y= 5 8  3y = 5
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
2(4  y)  y= 5 8  3y = 5
 one year ago

jazy Group TitleBest ResponseYou've already chosen the best response.0
Thank you catching that mistake! (:
 one year ago

jazy Group TitleBest ResponseYou've already chosen the best response.0
It should be right now!
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
yes you got it jazzy.. but a very simpl method is there
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
@JessNicole 2(4  y)  y= 5 8  3y = 5
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
@jazy @Rosh007 @gerryliyana THANK YOUUUUUUUUU!! SO MUCH EVERYONE!!:D .. I'd give all of you guys each a medal if i could!!
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
sice answer is already wrote here( which I don't like to do write directly) it is for you to know that there is a simple method than this
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
@jazy you are welcome
 one year ago

gerryliyana Group TitleBest ResponseYou've already chosen the best response.1
@JessNicole ur welcome..., happy to help u :)
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
@Rosh007 There's an easier way ? cause you can teach it to me ..this stuff is hard for me, i'm always confused.
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
actually it is derivd from the method mentioned here.. It is actually a special case of this method.. it is applicabl here since in one equation +y and in other equation y is there actually the problem is simple x+y=4 2xy=5 dw:1353003234368:dw so when we add both equation (LHS with LHS and RHS with RHS) you get 3x =9 which can be simplified quickly and reach the answer fast
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
You understood?
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
actually the problem is simple x+y=4 2xy=5 add x+y+2xy = 5+4 3x+0 = 9 3x =9 if you substitute the value of x in equn 1 you get th value of y....
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
@Rosh007, yess! i understood perfectly. It is much simpler!..Thank you very much. I really appreciate it.!:)
 one year ago

Rosh007 Group TitleBest ResponseYou've already chosen the best response.1
Welcome...But remember it is a special case ;) all the best
 one year ago

JessNicole Group TitleBest ResponseYou've already chosen the best response.0
Ha ha okay, thank youagain !:p
 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.