document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205576>Question 1205576</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 20.80 gift box of candy contains 2 varieties. One type costs 1.60/kg and the other costs $1.80/kg. The number of kg at 1.80 is twice the number of kg as $1.60. Find the number of kg of each type of candy. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #842479 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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/cgi-bin/show-face.mpl?user=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=842479\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "For new tutor CharcoalRobin....<br><BR>\n" );
document.write( "(1) Learn how to use html to make your posts readable.  Your post with the whole solution in a single paragraph is extremely hard to read.<br><BR>\n" );
document.write( "You can learn some of the basics by looking at the responses from other tutors and clicking on \"show source\".<br><BR>\n" );
document.write( "(2) Check you work and your answer before submitting your response.  We are all capable of making arithmetic errors....<br><BR>\n" );
document.write( "Here is an informal mental solution that solves the problem by the same path as the formal algebraic solution shown by tutor @ikleyn.<br><BR>\n" );
document.write( "Since there are twice as many of the candies at $1.80/kg as there are at $1.60/kg, make groups of 2kg at $1.80/kg and 1kg at $1.60/kg, costing a total of 2($1.80)+$1.60 = $5.20.<br><BR>\n" );
document.write( "Since the total cost is $20.80, the number of these groups is $20.80/$5.20 = 4.<br><BR>\n" );
document.write( "So there are 4*2 = 8kg of candies at $1.80/kg and 4kg at $1.60/kg.<br><BR>\n" );
document.write( "ANSWER: 8kg at $1.80/kg and 4kg at $1.60/kg<br><BR>\n" );
document.write( "CHECK: 8($1.80)+4($1.60) = $14.40+$6.40 = $20.80<br><BR>\n" );
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