document.write( "Question 709596: adding chlorine to a pool:for a 9000 L pool you add 200 g. What dose should you add for a 60000 L pool? \n" ); document.write( "
Algebra.Com's Answer #436686 by vheroli(126)\"\" \"About 
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Cross multiply:
\n" ); document.write( "\"9000%2F200+=+60000%2Fn\"
\n" ); document.write( "200*60000/9000=n
\n" ); document.write( "1333.3333g=n\r
\n" ); document.write( "\n" ); document.write( "To check:
\n" ); document.write( "\"9000%2F200+=+60000%2F1333.3333\"
\n" ); document.write( "45=45
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