document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=308306>Question 308306</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ziggy bought x cans of red goo for y dollars a can, and z cans of blue goo for 3y dollars a can.  If he bought twice as much blue goo as red goo, then in terms of y, what was the average cost, in dollars, per can of goo?\r<BR>\n" );
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document.write( "a)  3y/2  b) 7y/3  c)  3y – y	d)  2y	e)  6y </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220428 by </B><A HREF=/tutors/aboutme.mpl?userid=palanisamy><B>palanisamy(496)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=palanisamy><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=220428\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ziggy bought x cans of red goo for y dollars a can<BR>\n" );
document.write( "Total cost of red goo = xy<BR>\n" );
document.write( "Also,Ziggy bought z cans of blue goo for 3y dollars a can. <BR>\n" );
document.write( "Total cost of blue goo = z*3y=3yz<BR>\n" );
document.write( "He bought twice as much blue goo as red goo.<BR>\n" );
document.write( "So, z=2x<BR>\n" );
document.write( "Total number of cans = z+x= 2x+x = 3x<BR>\n" );
document.write( "Total cost of all goo = xy+3yz=xy+3y*2x=xy+6xy=7xy<BR>\n" );
document.write( "Average cost per can = (7xy)/(x+z)=7xy/(x+2x)=7xy/3x=$ 7y/3 </SPAN>\n" );
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