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April 23, 2014

April 23, 2014

Posted by **Hannah** on Tuesday, April 17, 2012 at 2:38pm.

I need to solve for x. I was going to do .50 X 3.20e-1 and then take the square root but this is not correct. I am not sure what to do. Thank you for your help.

- Math(Please help) -
**Reiny**, Tuesday, April 17, 2012 at 3:18pmYou probably meant

(.50 - x)/x = 3.2 e^-1= 3.2/e

crossmultiply ...

.50 - x = (3.2/e)x

(3.2/e)x + x = .5

x(3.2/e + 1)

x = .5/(3.2/e + 1)

multiply by e/e

= .5e/(3.2 + e)

multiply by 10/10

= 5e/(32 + 10e)

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