document.write( "Question 119755: Sam and Paul have 480 marbles between them. SAm arranges them in columns with 6 in each column, and paul arranges them with 9 in each column. The total number of columns is 72. Express the above information in the form of an algebraic expression. \n" ); document.write( "
Algebra.Com's Answer #87759 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! X+Y=72 OR X=72-Y \n" ); document.write( "6X+9Y=480 \n" ); document.write( "6(72-Y)+9Y=480 \n" ); document.write( "432-6Y+9Y=480 \n" ); document.write( "3Y=480-432 \n" ); document.write( "3Y=48 \n" ); document.write( "Y=48/3 \n" ); document.write( "Y=16 ROWS FOR PAUL'S MARBLES. \n" ); document.write( "72-16=56 ROWS FOR SAM'S MARBLES. \n" ); document.write( "PROOF \n" ); document.write( "6*56+9*16=480 \n" ); document.write( "336+144=480 \n" ); document.write( "480=480 \n" ); document.write( " |