document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=29706>Question 29706</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My son couldn't get these homework problem (even using text) and teacher didn't have time to review in class.  QUESTION  A librarian bought 10 library books for a total of $138.62; how many at $12.95 and how many at $15.99?  This was a \"real life problem\" in a 7th grade unit on decimals and percents.  ALSO, QUESTION  Play tickets were $6 per adult and $4 per child.  If $960 total sales were for 180 tickets, how many were adult? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #16423 by </B><A HREF=/tutors/aboutme.mpl?userid=askmemath><B>askmemath(368)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=askmemath><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=16423\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let X books be bough for 12.95 each<BR>\n" );
document.write( "Total =12.95X<BR>\n" );
document.write( "Then 10-X books were bought for 15.99 each<BR>\n" );
document.write( "Total = 15.99(10-X)<BR>\n" );
document.write( "Grand total = 138.62<BR>\n" );
document.write( "i.e. 12.95X+15.99(10-X) = 138.62<BR>\n" );
document.write( "12.95X + 159.9 -15.99X = 138.62\r<BR>\n" );
document.write( "\n" );
document.write( "I hope your son can solve from here. You have to follow a similar approach for the next problem as well .<BR>\n" );
document.write( "Come back with a repost if you get stuck anywhere. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );