document.write( "Question 968710: Please help me solve this problem: A car leaves a town at 120 kilometers per hour. How long will it take a second car, travelling at 135 kilometers per hour, to catch the first car if it leaves 1 hour later? \n" ); document.write( "
Algebra.Com's Answer #591911 by josgarithmetic(39617)\"\" \"About 
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_________________rate___________time__________distance
\n" ); document.write( "firstcar__________r_____________t+k____________d
\n" ); document.write( "secondcar_________R______________t_____________d\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "KNOWN:
\n" ); document.write( "r=120
\n" ); document.write( "R=135
\n" ); document.write( "k=1
\n" ); document.write( "UNKNOWN:
\n" ); document.write( "t, d, the travel time of second car and the distance when equal for both cars\r
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\n" ); document.write( "\n" ); document.write( "RT=D relationship gives the system of equations,
\n" ); document.write( "\"system%28r%28t%2Bk%29=d%2CRt=d%29\"\r
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\n" ); document.write( "\n" ); document.write( "Solve the system for t and d. The question specifically asks for t. The two formulas for d can simply be equated and then solved for t.
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