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Problem Solving#2: Exponents

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by Neo2000 » Tue Feb 13, 2007 7:52 am
I got D.

Not sure if I should post my explanation.

Mark, further clarification would be great. Should I post my explanation right away or wait a specific amount of time before editing my post ?

Edit:Explaining my method

I simply converted everything to decimals and simplified.
I got 3.125 in the numerator and .625 in the denominator.
Last edited by Neo2000 on Wed Feb 14, 2007 4:07 am, edited 1 time in total.
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Source: — Problem Solving |
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by banona » Wed Feb 14, 2007 7:06 am
Hi Mr Mark Dabral,
It took me 10s to do it, (answer is D)
iI just multiplied the numerator and the denominator by 2^3
and got the amount equivalent to ( 2^3 + 2^4 + 1)/( 1 + 2^2) which equals to ( 8+16+1)/(1=4) = 25/5 = 5

I hope I am right
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