document.write( "Question 904564: A city map is placed on a coordinate grid. The post office is located at the point P(5, 35), the library is located at the point L(15, 10), and the fire station is located at the point F (9, 25). What is the ratio of the length of PF to the length of LF? I dont quite understand. \n" ); document.write( "
Algebra.Com's Answer #548804 by richwmiller(17219)\"\" \"About 
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(15,10)(9,25) 'lf
\n" ); document.write( "d=sqrt((x2-x1)^2)+(y2-y1)^2)
\n" ); document.write( "d=sqrt(+(9-15)^2)+(25-10)^2
\n" ); document.write( "d=sqrt(+(-6)^2)+(15)^2
\n" ); document.write( "d=sqrt(36+225)
\n" ); document.write( "d=sqrt(261)
\n" ); document.write( "lf=16.1554944
\n" ); document.write( "(5,35)(15,10) 'pl
\n" ); document.write( "d=sqrt((x2-x1)^2)+(y2-y1)^2)
\n" ); document.write( "d=sqrt(+(15-5)^2)+(10-35)^2
\n" ); document.write( "d=sqrt(+(10)^2)+(-25)^2
\n" ); document.write( "d=sqrt(100+625)
\n" ); document.write( "d=sqrt(725)
\n" ); document.write( "pl=26.925824\r
\n" ); document.write( "\n" ); document.write( "(5,35)(9,25) 'pf
\n" ); document.write( "d=sqrt((x2-x1)^2)+(y2-y1)^2)
\n" ); document.write( "d=sqrt(+(9-5)^2)+(25-35)^2
\n" ); document.write( "d=sqrt(+(4)^2)+(-10)^2
\n" ); document.write( "d=sqrt(16+100)
\n" ); document.write( "d=sqrt(116)
\n" ); document.write( "pf=10.770329\r
\n" ); document.write( "\n" ); document.write( "pf=10.770329
\n" ); document.write( "lf=16.1554944
\n" ); document.write( "pf/lf=10.770329/16.1554944=0.66666662952759898205281789457338= about 2/3
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