document.write( "Question 185403: Susan recieved a $80.00 gift card. She used it buying coffee that cost $8.18 pre pound. After buying, she had $30.92 left. How many pounds did she buy? \n" ); document.write( "
Algebra.Com's Answer #139102 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Susan recieved a $80.00 gift card. She used it buying coffee that cost $8.18 pre pound. After buying, she had $30.92 left. How many pounds did she buy? \n" ); document.write( ". \n" ); document.write( "Let x = pounds of coffee bought \n" ); document.write( ". \n" ); document.write( "\"amt of gift card\" - \"cost of coffee\" = \"amt left on gift card\" \n" ); document.write( "80 - 8.18x = 30.92 \n" ); document.write( "-8.18x = -49.08 \n" ); document.write( "x = -49.08/-8.18 \n" ); document.write( "x = 6 pounds \n" ); document.write( " \n" ); document.write( " |