document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=696515>Question 696515</A>: <I><SPAN STYLE=\"word-break: break-all;\"> one grandpa, one dad, one grandson. total age of these three is 140yrs. grandsons age in months is eqaul to the age of grandpa n years and grandsons age in days is eqaul to the age of the dad in weeks. so what is the age of these three persons? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #429067 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=429067\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> one grandpa, one dad, one grandson. total age of these three is 140yrs.<BR>\n" );
document.write( " grandsons age in months is equal to the age of grandpa n years,<BR>\n" );
document.write( " and grandsons age in days is equal to the age of the dad in weeks.<BR>\n" );
document.write( " so what is the age of these three persons?<BR>\n" );
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document.write( "let a = grandpa's age (yrs)<BR>\n" );
document.write( "let b = dad's age<BR>\n" );
document.write( "let c = grandson's age<BR>\n" );
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document.write( "Write an equation for each statement:<BR>\n" );
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document.write( "\"one grandpa, one dad, one grandson. total age of these three is 140yrs.\"<BR>\n" );
document.write( "a + b + c = 140<BR>\n" );
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document.write( "\" grandsons age in months is eqaul to the age of grandpa n years\"<BR>\n" );
document.write( "a = 12c<BR>\n" );
document.write( ":<BR>\n" );
document.write( "\"and grandsons age in days is eqaul to the age of the dad in weeks.\"<BR>\n" );
document.write( "52b = 365c<BR>\n" );
document.write( "b = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=365%2F52 ALIGN=MIDDLE  ALT=\"365%2F52\"   DISABLED_style= \"max-width:90%; height:auto;\" >c<BR>\n" );
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document.write( "Substitue for a and b in the 1st equation<BR>\n" );
document.write( "12c + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=365%2F52 ALIGN=MIDDLE  ALT=\"365%2F52\"   DISABLED_style= \"max-width:90%; height:auto;\" >c + c = 140<BR>\n" );
document.write( "13c + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=365%2F52 ALIGN=MIDDLE  ALT=\"365%2F52\"   DISABLED_style= \"max-width:90%; height:auto;\" >c  = 140<BR>\n" );
document.write( "mult by 52<BR>\n" );
document.write( "52(13c) + 365c = 52(140)<BR>\n" );
document.write( "676c + 365c = 7280<BR>\n" );
document.write( "1041c = 7280<BR>\n" );
document.write( "c = 7280/1041<BR>\n" );
document.write( "c ~ 7 yrs old the grandson<BR>\n" );
document.write( "How about grandpa?<BR>\n" );
document.write( "12 * 7 = 84 yrs old is grandpa<BR>\n" );
document.write( "and<BR>\n" );
document.write( "Find Dad's age, using the total yrs equation<BR>\n" );
document.write( "140 - 7 - 84 = 49 is dad's age<BR>\n" );
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document.write( "Check this<BR>\n" );
document.write( "52(49) = 365(7)<BR>\n" );
document.write( "divide both sides by 7<BR>\n" );
document.write( "52*7 = 365<BR>\n" );
document.write( "364 ~ 365, close enough?<BR>\n" );
document.write( ":\r<BR>\n" );
document.write( "\n" );
document.write( "so what is the age of these three persons? 84, 49, 7 </SPAN>\n" );
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