document.write( "Question 62705: Chocolate chip cookies sell for $.50 each and oatmeal cookies sell for $.35 each. On Monday morning, the bakery sold 20 cookies and received $8.80. How many chocolate chip cookies were sold.\r
\n" ); document.write( "\n" ); document.write( "Please help. I have been working on this for hours and don't know what I'm doing wrong! \n" ); document.write( "
Algebra.Com's Answer #43504 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Chocolate chip cookies sell for $.50 each and oatmeal cookies sell for $.35 each. On Monday morning, the bakery sold 20 cookies and received $8.80. How many chocolate chip cookies were sold.
\n" ); document.write( ":
\n" ); document.write( "Let x = no. ch chip cookies; Let y = no. of ch oatmeal cookies
\n" ); document.write( ":
\n" ); document.write( "Write the amt equation:
\n" ); document.write( "x + y = 20
\n" ); document.write( "Can also write it:
\n" ); document.write( "y = 20 - x
\n" ); document.write( ":
\n" ); document.write( "Write the money equation:
\n" ); document.write( ".50x + .35y = 8.80
\n" ); document.write( ":
\n" ); document.write( "Using the 1st equation where y = (20-x), substitute (20-x) in the 2nd equation:
\n" ); document.write( ".50x + .35(20-x) = 8.80
\n" ); document.write( ".50x + 7 - .35x = 8.80
\n" ); document.write( ".50x - .35x = 8.80 - 7
\n" ); document.write( ".15x = 1.80
\n" ); document.write( "x = 1.80/.15
\n" ); document.write( "x = 12 ch chip cookies
\n" ); document.write( ":
\n" ); document.write( "I'll let you figure out how many oatmeal cookies, check your solutions in the money equation
\n" ); document.write( " \n" ); document.write( "
\n" );