document.write( "Question 809929: [Nancy left London traveling at 40 MPH. Tom to catch up left some time later driving at 49 MPH Tom caught up after 4 hours how long was Nancy driving before Tom caught up?] \n" ); document.write( "
Algebra.Com's Answer #487859 by TimothyLamb(4379)\"\" \"About 
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Question:
\n" ); document.write( "[Nancy left London traveling at 40 MPH. Tom to catch up left some time later driving at 49 MPH Tom caught up after 4 hours how long was Nancy driving before Tom caught up?]
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\n" ); document.write( "s = d / t
\n" ); document.write( "t = d / s
\n" ); document.write( "d = s * t
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\n" ); document.write( "D = 40n = 49t
\n" ); document.write( "D = 40n = 49*4
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\n" ); document.write( "40n = 49*4
\n" ); document.write( "40n = 196
\n" ); document.write( "Answer:
\n" ); document.write( "n = 4.9 hours
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