document.write( "Question 96351: how many newspaper does quang delliver in 4 days if he delivers4'200 in three week period[21days] \n" ); document.write( "
Algebra.Com's Answer #70142 by checkley71(8403)\"\" \"About 
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4/21=X/4,200 CROSS MULTIPLY
\n" ); document.write( "21X=4*4,200
\n" ); document.write( "21X=16,800
\n" ); document.write( "X=16,9800/21
\n" ); document.write( "X=800 DELIVERED IN 4 DAYS.
\n" ); document.write( "PROOF
\n" ); document.write( "4/21=800/4,200
\n" ); document.write( "21*800=4*4,200
\n" ); document.write( "16,800=16,800
\n" ); document.write( "
\n" );