document.write( "Question 567199: how do you solve 3.5^x=47.9 without using a calculator? I get really confused when it comes to the decimals.. \n" ); document.write( "
Algebra.Com's Answer #366454 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
3.5^x=47.9
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\n" ); document.write( "You have no choice but to take the log of both sides:
\n" ); document.write( "x(log(3.5)) = log(47.9)
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\n" ); document.write( "x = log(47.9)/(log(3.5))
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\n" ); document.write( "x = 3.0885
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\n" ); document.write( "Unless you use a slide rule of log tables you cannot
\n" ); document.write( "get this answer without a calculator.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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