document.write( "Question 287881: charlie rides her bike at 5 miles per hour her sister leaves 15 minutes later at 8 miles per hour how long will it take her sister to catch up to her \n" ); document.write( "
Algebra.Com's Answer #208608 by richwmiller(17219)\"\" \"About 
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r*t=d
\n" ); document.write( "5*1/4=5/4 miles\r
\n" ); document.write( "\n" ); document.write( "8-5=3
\n" ); document.write( "sister is gaining on charlie at 3 miles an hour. How long will it take her to go 5/4 at 3 miles an hour
\n" ); document.write( "r*t=d
\n" ); document.write( "3*t=5/4
\n" ); document.write( "t=5/4*1/3=5/12*60=25 minutes
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