document.write( "Question 790942: Henry paid 80 cents for a bag of peanuts. He sold all but 20 of them for $1.50 and made a profit of 54 dollars. How many bafs did he buy? \n" ); document.write( "
Algebra.Com's Answer #479479 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Henry paid 80 cents for a bag of peanuts. \n" ); document.write( " He sold all but 20 of them for $1.50 and made a profit of 54 dollars. \n" ); document.write( " How many bags did he buy? \n" ); document.write( ": \n" ); document.write( "let b = no. of bags bought \n" ); document.write( "then \n" ); document.write( "(b-20) = no. of bags sold \n" ); document.write( ": \n" ); document.write( "Retail - wholesale = profit \n" ); document.write( "1.50(b-20) - .80b = 54 \n" ); document.write( "1.5b - 30 - .80b = 54 \n" ); document.write( "1.5b - .80b = 54 + 30 \n" ); document.write( ".70b = 84 \n" ); document.write( "b = 84/.7 \n" ); document.write( "b = 120 bag bought \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "See if that works \n" ); document.write( "100*1.50 = $150 \n" ); document.write( "120* .80 = $96 \n" ); document.write( "------------------ \n" ); document.write( "profit: $54\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |