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08-28-2010, 02:56 AM
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#35
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Yank me.
In-Game Name: -quit-
Current Level: -quit-
Server: Teva
Posts: 1,502
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Originally Posted by Lirange
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Solve for x and list restrictions for variables.
I'm having difficulty with these problems-_-.
1) .5(2x+3/4)-1/3(.1+x)=1
x+.375-.03(forever)+-1/3=1 (Distribute)
The .0333333 is what screws me up. I think if I leave -1/3*.1 as a decimal I'll get it right but I don't know how to do thatxD. Forgot basic multiplication.
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Code:
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1/2(2x+3/4) - 1/3(1/10 + x) = 1 --- remove outer factors
(x + 3/8) - (1/30 + x/3) = 1 --- remove brackets
x + 3/8 - 1/30 - x/3 = 1 --- find a common denominator (240)
240x/240 + 90/240 - 8/240 -80x/240 = 1 --- "unite" the equation under one denominator
(240x + 90 - 8 - 80x)/240 = 1 --- move the denominator to the right side, and do the arithmetic calculations on the left side
160x + 82 = 240 --- wont bother explaining, this is too easy
160x = 240 - 82
160x = 158
x = 158/160
x = 79/80 |
There. You list the restrictions, I forgot how to do that.
Last edited by Belaslav; 08-28-2010 at 02:59 AM..
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08-28-2010, 03:57 AM
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#38
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Yank me.
In-Game Name: -quit-
Current Level: -quit-
Server: Teva
Posts: 1,502
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Originally Posted by Ralath
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^is that really the answer? That's nothing close to what I got... but I didn't use a calculator so idk what the answer should be.
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Substitute the answer for x and see for yourself.
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08-28-2010, 04:29 AM
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#39
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Cave Archmage Book
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that would be awsome if we went to MIT, Lirange. I wouldnt even bother to stalk you though...if it helps though, Ive seen your picture, but you havent seen me.
try to make 10th and 11th grade count!!
@ Ralath
the hs i go to is great only because of the small magnet program. the regular school ....lol
im perverted not scary T_T
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