Restless — An Alex Hall Portrait (Full Film) | Faction Skis

Member of the Month

KilaTsunami
October, 2024

Online

Welcome to the Newschoolers forums! You may read the forums as a guest, however you must be a registered member to post. Register to become a member today!

MATH HELP PLEASE!!!!!

profile picture
GANDALF
Posts: 6303 - Karma: 6,578
i got this homework due tomorrow and i am stumped. ++karma for whoever can help me out.
Click for larger image
Feb 26 2008 11:05PM
0 0
profile picture
GANDALF
Posts: 6303 - Karma: 6,578
click it^
Feb 26 2008 11:05PM
0 0
profile picture
Schoening
Posts: 14332 - Karma: 1,268
you fucking bum doug.
Feb 26 2008 11:09PM
0 0
profile picture
GANDALF
Posts: 6303 - Karma: 6,578
haha shutup kohl i need help
Feb 26 2008 11:10PM
0 0
profile picture
mitchin
Posts: 112 - Karma: -1
its 14
Feb 26 2008 11:19PM
0 0
profile picture
user098123
Posts: 6072 - Karma: 18
I got 36 tables and 56 chairs, for a profit of $2460.
Feb 26 2008 11:20PM
0 0
profile picture
GANDALF
Posts: 6303 - Karma: 6,578
.....
Feb 26 2008 11:20PM
0 0
profile picture
Schoening
Posts: 14332 - Karma: 1,268
whatever you do don't ask dspong. kid sucks at math.
Feb 26 2008 11:24PM
0 0
profile picture
Tinga
Posts: 11349 - Karma: 2,333
this guy knows his shit. except that one time when he misplaced a decimal for me.
Feb 26 2008 11:24PM
0 0
profile picture
GANDALF
Posts: 6303 - Karma: 6,578
you're lying. all asians are good at math
Feb 26 2008 11:26PM
0 0
profile picture
user098123
Posts: 6072 - Karma: 18
Why you always gotta bring that up?

Haha.
Feb 26 2008 11:26PM
0 0
profile picture
GANDALF
Posts: 6303 - Karma: 6,578
how did you get that?
Feb 26 2008 11:27PM
0 0
profile picture
KjellEllefson
Posts: 581 - Karma: 254
you have to set up two equations and then solve for one variable in one equation and plug it into the other
only in this problem there is profit you have to maximize so you have to plug the one variable in to the cost equation
you then take the derivative and set it equal to 0
this will give you your max and mins and then you can find the second derivative to prove that it is a max
simple max/ min calc really
Feb 26 2008 11:42PM
0 0
profile picture
R-Bertsch
Posts: 4719 - Karma: 20
haha it says 420, your teachers a po head
Feb 26 2008 11:43PM
0 0
profile picture
GANDALF
Posts: 6303 - Karma: 6,578
+karma to you
Feb 26 2008 11:44PM
0 0
profile picture
GANDALF
Posts: 6303 - Karma: 6,578
and +karma to you
Feb 26 2008 11:44PM
0 0
profile picture
Tinga
Posts: 11349 - Karma: 2,333
haha youll never mess up on your molarity again will you.
Feb 26 2008 11:45PM
0 0
profile picture
user098123
Posts: 6072 - Karma: 18
Hes only in Math 2, unless that is calc I don't think it's that complicated. Regardless, ya that is what i did. I also changed it so that you multiplied everything for the chairs by 3, so that the profits were the same for the two different aspects, 1 table or 3 chairs. So you would have like 9 board feet and 6 labor hours for chairs.

9x+7y=420
6x+8y=400

multiply bottom equation by 3/2, so that it is 9x for both, subtract bottom from top and you are left with:

-6y=-180, you can take out a negative. Divide by 5, you get 36 for y. Plug that y value into either equation, and you get 56/3 for x. However, x is equal to chairs, and I multiplied the chair value times 3 earlier. So you could really say it is like, 3x+7y=420 or 2x+8y=400. This gives you a chair value of 56. Thus you have 36 tables (y value) and 56 chairs (x value), which will give you exactly 420 board feet and 400 hours labor. I didn't check to see if these are the max using calc, but I'm pretty sure it is just from how these equations work out.
Feb 27 2008 12:02AM
0 0
profile picture
GANDALF
Posts: 6303 - Karma: 6,578
thank you dude. that helped a lot
Feb 27 2008 12:34AM
0 0
All times are Eastern (-5)