document.write( "Question 1168001: Bob had enough money to buy 25 chocolate cookies. Each chocolate cookie cost as much as 2 butter cookies. He borrowed another 6 dollars to buy 20 chocolate and 20 butter cookies. \r
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document.write( "How much money did he have at first?\r
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Algebra.Com's Answer #792594 by VFBundy(438) You can put this solution on YOUR website! Cost of one chocolate cookie = x \n" ); document.write( "Cost of one butter cookie = 0.5x \n" ); document.write( " \n" ); document.write( "25x + 6 = 20x + 20(0.5x) \n" ); document.write( " \n" ); document.write( "25x + 6 = 20x + 10x \n" ); document.write( " \n" ); document.write( "25x + 6 = 30x \n" ); document.write( " \n" ); document.write( "5x = 6 \n" ); document.write( " \n" ); document.write( "x = $1.20 \n" ); document.write( " \n" ); document.write( "Since Bob originally had enough money to buy 25 chocolate cookies...and we know one chocolate cookie costs x dollars ($1.20)...that means 25 chocolate cookies cost $30. So, Bob originally had $30. |