document.write( "Question 1114123: Light intensity is reduced by 3.5% for each meter a diver descends below the water surface. At what depth is the light intensity only 15% of that at the surface? \n" ); document.write( "
Algebra.Com's Answer #729181 by ankor@dixie-net.com(22740)\"\" \"About 
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Light intensity is reduced by 3.5% for each meter a diver descends below the water surface.
\n" ); document.write( " At what depth is the light intensity only 15% of that at the surface?
\n" ); document.write( ":
\n" ); document.write( "a 3.5% reduction = 96.5% of the light remains
\n" ); document.write( "using the decimal equiv of per cent
\n" ); document.write( "d = depth in meters
\n" ); document.write( "\"1%2A.965%5Ed+=+.15\"
\n" ); document.write( "using natural logs
\n" ); document.write( "\"ln%28.965%5Ed%29\" = \"ln%28.15%29\"
\n" ); document.write( "the log equiv of exponent
\n" ); document.write( "\"d%2Aln%28.965%29\" = \"ln%28.15%29\"
\n" ); document.write( "d = \"ln%28.15%29%2Fln%28.965%29\"
\n" ); document.write( "d = 53.25 meters below the surface
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