document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=31223>Question 31223</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On January 1, A group of scientist tagged 500 fish and returned them back to the lake. The group returned on February 1, and retrieved 400 fish. Of those 400, 8 of  which were already tagged. How many fish are in the lake? </SPAN>\n" );
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document.write( "When they returned on Fenruary 1, they found that 8 out of 400 fish were tagged. Therefore, a good estimate would be to say that, in the lake, 8 out of every 400 fish are tagged. Or equivalently (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F400%2A100+=+2 ALIGN=MIDDLE  ALT=\"8%2F400%2A100+=+2\"   DISABLED_style= \"max-width:90%; height:auto;\" >) 2% of all the fish in the lake are tagged.\r<BR>\n" );
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document.write( "We know that 2% of all the fish in the lake are tagged. We also know that 500 fish are tagged. So we conclude that 500 is 2% of the total number of fish in the lake. So, calling X to the total number of fish, we have the equation:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2F100%29X+=+500 ALIGN=MIDDLE  ALT=\"%282%2F100%29X+=+500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solving for X:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X+=+500%2A%28100%2F2%29+=+25000 ALIGN=MIDDLE  ALT=\"X+=+500%2A%28100%2F2%29+=+25000\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Hence there are 25,000 fish in the lake.\r<BR>\n" );
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document.write( "I hope this helps!<BR>\n" );
document.write( "Get more answers at <a  rel=nofollow HREF=http://www.onlinemathanswers.com>Online Math Answers.com</a>!\r<BR>\n" );
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document.write( " </SPAN>\n" );
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