document.write( "Question 666763: i have this formula: y=1000e^-0.056x
\n" ); document.write( "this si the line of best fit. i need to find x when y is equal to 500.
\n" ); document.write( "i tried:
\n" ); document.write( "500=1000e^-0.056x
\n" ); document.write( "log(500)=-.056x(log(1000))
\n" ); document.write( "then i divided both sides by log(1000) and after that i divided both sides by -.056. \r
\n" ); document.write( "\n" ); document.write( "Because this is part of a word problem, i know my answer should be close to 12.3, but i keep getting something above that. Help please! \n" ); document.write( "

Algebra.Com's Answer #414677 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "y=1000e^-0.056x   || Fins x when y  = 500
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document.write( "
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document.write( "   
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document.write( "      ln(.5) = -.056x       || Use Natural logarithm  ln on Your calculator
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document.write( "      ln(.5)/-.056 = x
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document.write( "              12.3776 = x \n" );
document.write( "

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