Question 202211: Can someone please help me with this one;
100 = 950(1 + x/2)^10
Found 3 solutions by scott8148, stanbon, RAY100:
Answer by scott8148(6628)   (Show Source):
You can put this solution on YOUR website! dividing by 950 ___ 2/19 = (1 + x/2)^10
taking logarithm ___ log(2/19) = 10 log(1 + x/2)
dividing by 10 ___ [log(2/19)] / 10 = log(1 + x/2)
taking antilog ___ .7984 = 1 + x/2
subtracting 1 and multiplying by 2 ___ -.4032 = x
Answer by stanbon(75887)  (Show Source):
You can put this solution on YOUR website! 100 = 950(1 + x/2)^10
Divide both sides by 50 to get:
[(1 + (x/2)]^10 = 2/19
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Raise both sides to the (1/10) power
1 + (x/2) = 0.7984...
x/2 = -0.2015869...
x = -0.4031738...
=========================
Cheers,
Stan H.
Answer by RAY100(1637) (Show Source):
You can put this solution on YOUR website! 100=950(1+x/2)^10
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100/950 = (1+x/2)^10
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let y=(1+x/2)
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.1053 =y^10
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take tenth power
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y= .7984
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subst back in ,,,y=(1+x/2)
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1 +x/2 = .7984
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x/2 = -.2016
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x=-.4032
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check
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100=950(1+(-.4032)/2)^10=950(.10525)=100,,,,ok
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