# off topic - algebra, what am i doing wrong?

Discussion in 'The Lounge' started by igzekyativ, Jul 30, 2010.

1. ### igzekyativ Well-Known Member 43

Jun 7, 2010
100
25
43
here is my delima..

suppose that person A makes \$13/hr and person B makes \$20/hr. Understand that it would take person A ~ 7.6923 hours to make \$100; it would take person B 5 hours to make \$100.

If they wanted to split something that cost \$100 and have it so that the amount they paid makes it so they both had to put in the same amount of hours, how would you solve...

I came up with the following equation because (person A should pay an amount based on a ratio of what they make vs what person b makes and then add person B's payment to get \$100) \$60.50(13/20) + \$60.50 ~ \$100 or 39.33 + 60.50 ~ \$100

x(13/20) + x = \$100
x + x = \$100/(13/20)
2x = \$153.84615
x = \$76.923

but when i plug the number into the equation, it does not equal \$100.. x should equal something near \$61.75..

where am i going wrong?

#1
2. ### bvbull200 Banned 0

Jun 5, 2010
999
197
0
North Richland Hills, TX
You want a guy that makes \$13/hr and a guy that makes \$20/hr to work identical hours and their combined wages equal \$100?

#2
igzekyativ likes this.
3. ### F14Scott Active Member 16

Jun 25, 2010
31
7
16
h = number of hours both people must work

13h + 20h = 100

33h = 100

h = 100/33 = 3.03 , both people work 3 hours

person a earns \$39
person b earns \$60

#3
igzekyativ likes this.

Jun 7, 2010
100
25
43
yes

#4
5. ### igzekyativ Well-Known Member 43

Jun 7, 2010
100
25
43

man i feel dumb.. so simple..

#5
6. ### bvbull200 Banned 0

Jun 5, 2010
999
197
0
North Richland Hills, TX
13x + 20x = 100 where x = number of hours

33x = 100

x = 100/33

x = 3.030303.....

#6
7. ### bvbull200 Banned 0

Jun 5, 2010
999
197
0
North Richland Hills, TX
Damn....beat me to it.

#7
8. ### Barats Well-Known Member 53

Jun 7, 2010
470
37
53
Male
I'm failing to see how this relates to the Evo. Lol.

#8
9. ### igzekyativ Well-Known Member 43

Jun 7, 2010
100
25
43
it does not, hence the title, but i like the people here and i know they would help me out..

#9
10. ### 81_ Banned 0

Jul 6, 2010
388
39
0
if a train leaves ny at 1pm and a train leaves KC at 12pm, who will get to froyo first

#10
11. ### igzekyativ Well-Known Member 43

Jun 7, 2010
100
25
43
technically the guy in NY.. tomorrow hits first in NY since they are an hour ahead of Kansas City

#11
12. ### F14Scott Active Member 16

Jun 25, 2010
31
7
16
There are no stupid questions, only stupid people...

#12
13. ### 81_ Banned 0

Jul 6, 2010
388
39
0
no, there are stupid questions.

#13
14. ### CriticalCritic Well-Known Member 213

Nov 9, 2009
1,872
556
213
Cary, NC
Like what?

^ Like that ^

#14

Apr 27, 2010
18
0
25
Me.

#15
16. ### dan330 Well-Known Member 823

Jan 22, 2010
11,751
3,375
823
what he said!!

#16
17. ### SB13X Well-Known Member 103

Jun 24, 2010
930
225
103
Rail Consultant
Wigan, UK
Algebra and what your doing wrong? Getting involved with it in the first place would be my response. So glad I passed on doing calculus at school. lol

#17