document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=171811>Question 171811</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are 357 seniors in Harris High School. The ratio of boys to girls is 7:10. How many boys are in the senior class?\r<BR>\n" );
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document.write( "210 <BR>\n" );
document.write( "147 <BR>\n" );
document.write( "117 <BR>\n" );
document.write( "107<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #126916 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=126916\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=# of boys and y=# of girls\r<BR>\n" );
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document.write( "Because \"There are 357 seniors\", this means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By=357 ALIGN=MIDDLE  ALT=\"x%2By=357\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Solving for \"y\", we get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=357-x ALIGN=MIDDLE  ALT=\"y=357-x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Since \"The ratio of boys to girls is 7:10\", this tells us that we have the ratio:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F10=x%2Fy ALIGN=MIDDLE  ALT=\"7%2F10=x%2Fy\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F10=x%2Fy ALIGN=MIDDLE  ALT=\"7%2F10=x%2Fy\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F10=x%2F%28357-x%29 ALIGN=MIDDLE  ALT=\"7%2F10=x%2F%28357-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=357-x ALIGN=MIDDLE  ALT=\"y=357-x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%28357-x%29=10x ALIGN=MIDDLE  ALT=\"7%28357-x%29=10x\"   DISABLED_style= \"max-width:90%; height:auto;\" > Cross multiply\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2499-7x=10x ALIGN=MIDDLE  ALT=\"2499-7x=10x\"   DISABLED_style= \"max-width:90%; height:auto;\" > Distribute.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-7x=10x-2499 ALIGN=MIDDLE  ALT=\"-7x=10x-2499\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2499 ALIGN=MIDDLE  ALT=\"2499\"   DISABLED_style= \"max-width:90%; height:auto;\" > from both sides.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-7x-10x=-2499 ALIGN=MIDDLE  ALT=\"-7x-10x=-2499\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10x ALIGN=MIDDLE  ALT=\"10x\"   DISABLED_style= \"max-width:90%; height:auto;\" > from both sides.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-17x=-2499 ALIGN=MIDDLE  ALT=\"-17x=-2499\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms on the left side.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-2499%29%2F%28-17%29 ALIGN=MIDDLE  ALT=\"x=%28-2499%29%2F%28-17%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-17 ALIGN=MIDDLE  ALT=\"-17\"   DISABLED_style= \"max-width:90%; height:auto;\" > to isolate <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=147 ALIGN=MIDDLE  ALT=\"x=147\"   DISABLED_style= \"max-width:90%; height:auto;\" > Reduce. So there are 147 boys\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=357-x ALIGN=MIDDLE  ALT=\"y=357-x\"   DISABLED_style= \"max-width:90%; height:auto;\" > Go back to the isolated equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=357-147 ALIGN=MIDDLE  ALT=\"y=357-147\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=147 ALIGN=MIDDLE  ALT=\"x=147\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=210 ALIGN=MIDDLE  ALT=\"y=210\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract. So there are 210 girls\r<BR>\n" );
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document.write( "Answer:\r<BR>\n" );
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document.write( "So there are 147 boys and 210 girls </SPAN>\n" );
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