document.write( "Question 1011975: david purchased some cookies at the cost of 5 for $4 and sold them at 4 for $5. david made a profit of $90 in total. how many cookies did david purchase to make that much money?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #627801 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Cost per cookie=$4/5=$0.80 \n" ); document.write( "Price per cookie=$5/4=$1.25 \n" ); document.write( "Profit per cookie=Price-Cost=$1.25-$0.80=$0.45 \n" ); document.write( "David made $0.45 per cookie. \n" ); document.write( ". \n" ); document.write( "$90/$0.45=200 \n" ); document.write( ". \n" ); document.write( "ANSWER:David purchased (and sold) 200 cookies to make a $90 profit. \n" ); document.write( " |