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2006-10-15 02:19 PM cami_0422

問Maths!急,Thz!

(x/500+x)+100%=0.2%,
Find x,cor.to 3 d.p.

Thz a lot!!

2006-10-15 05:09 PM unkle_sb

100% = 1
0.2% = 0.002
SO (x/500+x) +100% =0.2%
=> (x/500+x)+1=0.002
=> 501x/500 = -0.998
501x =-499
x =-0.996

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