document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=562149>Question 562149</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Question:\r<BR>\n" );
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document.write( "Directions: Write a system of equations to model the situation.<BR>\n" );
document.write( "Sarah is 25 years older than her son Gavin. In ten years, Sarah will be twice Gavin's age. How old are Sarah and Gavin now?\r<BR>\n" );
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document.write( "My Work:<BR>\n" );
document.write( "Let x= Sarah's age<BR>\n" );
document.write( "Let y= Gavin's age<BR>\n" );
document.write( "y=x-25<BR>\n" );
document.write( "10+x=2y<BR>\n" );
document.write( "Subsitution:<BR>\n" );
document.write( "y=2y-25<BR>\n" );
document.write( "         +25<BR>\n" );
document.write( "y+25=2y<BR>\n" );
document.write( "-y<BR>\n" );
document.write( "25=2y<BR>\n" );
document.write( "divide by 2<BR>\n" );
document.write( "y=25\r<BR>\n" );
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document.write( "2(25)=x<BR>\n" );
document.write( "x=50            Sarah is 50 years old and Gavin is 25 years old. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #364458 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=364458\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Question:\r<BR>\n" );
document.write( "\n" );
document.write( "Directions: Write a system of equations to model the situation.<BR>\n" );
document.write( "Sarah is 25 years older than her son Gavin. In ten years, Sarah will be twice Gavin's age. How old are Sarah and Gavin now?\r<BR>\n" );
document.write( "\n" );
document.write( "My Work:<BR>\n" );
document.write( "Let x= Sarah's age<BR>\n" );
document.write( "Let y= Gavin's age<BR>\n" );
document.write( "y=x-25<BR>\n" );
document.write( "10+x=2y  ************** In 10 years, 2*(x-15) = y+10<BR>\n" );
document.write( "Subsitution:<BR>\n" );
document.write( "y=2y-25<BR>\n" );
document.write( "         +25<BR>\n" );
document.write( "y+25=2y<BR>\n" );
document.write( "-y<BR>\n" );
document.write( "25=2y<BR>\n" );
document.write( "divide by 2<BR>\n" );
document.write( "y=25\r<BR>\n" );
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document.write( "2(25)=x<BR>\n" );
document.write( "x=50            Sarah is 50 years old and Gavin is 25 years old.<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "The answer you got is what their ages will be in 10 years.<BR>\n" );
document.write( "Now, they're 40 and 15.<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );