Posted: 11/2/2011 7:30:29 AM EDT
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The great lurker here asks the brains at arfcom for help, my algebra skills are terrible and my boss has asked me to figure this out:
(X/185,000)^.7 = .1919 Solve for X Can anyone help me with this? thanks, Mike |
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Quoted:
The great lurker here asks the brains at arfcom for help, my algebra skills are terrible and my boss has asked me to figure this out: (X/185,000)^.7 = .1919 Solve for X Can anyone help me with this? thanks, Mike ln [ (X/185,000)^.7 ] = ln (.1919) .7 * ln[(X/185,000)] = ln (.1919) ln(X/185,000) = ln(.1919)/.7 ln(x) - ln(185,000) = ln(.1919)/.7 ln(x) = ln(185,000)+ln(.1919)/.7 e^ln(x) = e^[ln(185,000)+ln(.1919)/.7] x = e^[ln(185,000)+(ln(.1919)/.7)] <- exact answer x = 17498.2 <- approximate QED - half assed mathematician |
Uploaded with ImageShack.us (Note: the .7 exponent in the initial equation is there–– it got cut-off in the scan) Mike- Next time, do your own homework. To make up for us doing this one for you, "assign yourself" another problem of the same type that wasn't in your original assignment. |
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Quoted:
The great lurker here asks the brains at arfcom for help, my algebra skills are terrible and my boss has asked me to figure this out: (X/185,000)^.7 = .1919 Solve for X Can anyone help me with this? thanks, Mike If you don't know how to solve this problem explicitly, then use trial and error. Do something, in other words. |
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Quoted:
http://img256.imageshack.us/img256/4691/p1190201.jpg (Note: the .7 exponent in the initial equation is there–– it got cut-off in the scan) Mike- Next time, do your own homework. To make up for us doing this one for you, "assign yourself" another problem of the same type that wasn't in your original assignment. Too bad your solution is wrong!!! |
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Quoted:
Quoted:
The great lurker here asks the brains at arfcom for help, my algebra skills are terrible and my boss has asked me to figure this out: (X/185,000)^.7 = .1919 Solve for X Can anyone help me with this? thanks, Mike ln [ (X/185,000)^.7 ] = ln (.1919) .7 * ln[(X/185,000)] = ln (.1919) ln(X/185,000) = ln(.1919)/.7 ln(x) - ln(185,000) = ln(.1919)/.7 ln(x) = ln(185,000)+ln(.1919)/.7 e^ln(x) = e^[ln(185,000)+ln(.1919)/.7] x = e^[ln(185,000)+(ln(.1919)/.7)] <- exact answer x = 17498.2 <- approximate QED - half assed mathematician This was my first thought as well. I'm a glutton for punishment too. |
