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

Discussion in 'Off Topic' started by igzekyativ, Jul 30, 2010.

1. ### igzekyativ Well-Known Member Thread Starter Rank: None Points: 43 Posts: 100 Joined: Jun 7, 2010

Jun 7, 2010
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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 Rank: None Points: 113 Posts: 999 Joined: Jun 5, 2010

Jun 5, 2010
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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
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3. ### F14Scott Member Rank: None Points: 16 Posts: 31 Joined: Jun 25, 2010

Jun 25, 2010
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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
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Jun 7, 2010
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yes

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5. ### igzekyativ Well-Known Member Thread Starter Rank: None Points: 43 Posts: 100 Joined: Jun 7, 2010

Jun 7, 2010
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man i feel dumb.. so simple..

#5
6. ### bvbull200 Banned Rank: None Points: 113 Posts: 999 Joined: Jun 5, 2010

Jun 5, 2010
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13x + 20x = 100 where x = number of hours

33x = 100

x = 100/33

x = 3.030303.....

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7. ### bvbull200 Banned Rank: None Points: 113 Posts: 999 Joined: Jun 5, 2010

Jun 5, 2010
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Damn....beat me to it.

#7
8. ### Barats Android Enthusiast Rank: None Points: 63 Posts: 470 Joined: Jun 7, 2010

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

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9. ### igzekyativ Well-Known Member Thread Starter Rank: None Points: 43 Posts: 100 Joined: Jun 7, 2010

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

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10. ### 81_ Banned Rank: None Points: 43 Posts: 388 Joined: Jul 6, 2010

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

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11. ### igzekyativ Well-Known Member Thread Starter Rank: None Points: 43 Posts: 100 Joined: Jun 7, 2010

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

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12. ### F14Scott Member Rank: None Points: 16 Posts: 31 Joined: Jun 25, 2010

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

#12
13. ### 81_ Banned Rank: None Points: 43 Posts: 388 Joined: Jul 6, 2010

Jul 6, 2010
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no, there are stupid questions.

#13
14. ### CriticalCritic Android Expert Rank: None Points: 213 Posts: 1,872 Joined: Nov 9, 2009

Nov 9, 2009
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Like what?

^ Like that ^

#14

Apr 27, 2010
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Me.

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16. ### dan330 Android Expert Rank:  #26 Points: 923 Posts: 11,855 Joined: Jan 22, 2010

Jan 22, 2010
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what he said!!

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17. ### SB13X Android Expert Rank: None Points: 113 Posts: 930 Joined: Jun 24, 2010

Jun 24, 2010
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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