document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=795208>Question 795208</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having trouble getting started on this problem with percentages and ratios. please help me. The word problem is: Doug, Dick, an Dean are triplets in Mr. Finch's first pd. algebra 1 class, but Friday's exam is to be their last one in that school. On the following Monday, after the triplets have left the school, Mr. Finch said the class averages. Before the triplets left the class average was 74%. However, removing their scores causes the class average to rise by 1%. Furthermore he adds, the ratios of the triplets scores is 6:5:3 What are the scores of the three departing friends? the dozen students in the class quickly arrived at a answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #480963 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=480963\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Doug, Dick, an Dean are triplets in Mr. Finch's first pd. algebra 1 class, but Friday's exam is to be their last one in that school.<BR>\n" );
document.write( " On the following Monday, after the triplets have left the school, Mr. Finch said the class averages.<BR>\n" );
document.write( " Before the triplets left the class average was 74%.<BR>\n" );
document.write( " However, removing their scores causes the class average to rise by 1%.<BR>\n" );
document.write( " Furthermore he adds, the ratios of the triplets scores is 6:5:3 <BR>\n" );
document.write( " What are the scores of the three departing friends? <BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let x be the multiplier, then<BR>\n" );
document.write( "6x, 5x, and 3x is the triplets scores<BR>\n" );
document.write( "Let a = the total scores of the other student<BR>\n" );
document.write( "number of remaining students = 12<BR>\n" );
document.write( ":<BR>\n" );
document.write( "With the triplets<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a+%2B+6x+%2B+5x+%2B+3x%29%2F%2812%2B3%29 ALIGN=MIDDLE  ALT=\"%28a+%2B+6x+%2B+5x+%2B+3x%29%2F%2812%2B3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 74<BR>\n" );
document.write( "a + 14x = 15(74)<BR>\n" );
document.write( "a + 14x = 1110<BR>\n" );
document.write( ":<BR>\n" );
document.write( "After the triplets leave<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2F12 ALIGN=MIDDLE  ALT=\"a%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 75<BR>\n" );
document.write( "a = 12*75<BR>\n" );
document.write( "a = 900 total scores of the rest of the class<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Find x<BR>\n" );
document.write( "900 + 14x = 1110<BR>\n" );
document.write( "14x = 1110 - 900<BR>\n" );
document.write( "14x = 210<BR>\n" );
document.write( "x = 210/14<BR>\n" );
document.write( "x = 15 is the multiplier<BR>\n" );
document.write( "therefore the triplet's grades<BR>\n" );
document.write( "15(6) = 90<BR>\n" );
document.write( "15(5} = 75<BR>\n" );
document.write( "15(3) = 45<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check this<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28900%2B90%2B75%2B45%29%2F15 ALIGN=MIDDLE  ALT=\"%28900%2B90%2B75%2B45%29%2F15\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 74<BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=900%2F12 ALIGN=MIDDLE  ALT=\"900%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 75\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );