document.write( "Question 703085: Could you please help me here \r
\n" ); document.write( "\n" ); document.write( "A car leaves Seattle at 2 a.m. travelling south on I-5 at a constant rate of speed of 70
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\n" ); document.write( "on I-5 at a constant rate of speed of 50 miles per hour. When & where will the faster car
\n" ); document.write( "overtake the slower car
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Algebra.Com's Answer #433596 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Analyze the positions and time for the two drivers. POSITION is more helpful than simply distance.\r
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\n" ); document.write( "\n" ); document.write( "Use Seattle as a zero position and Tacoma as a +40 position. At start time (which is actually 1 A.M. here), Seattle car and Tacoma car are 40 miles apart, but Seattle car is at 0 and Tacoma car is at +40. \r
\n" ); document.write( "\n" ); document.write( "Formulas for Position:
\n" ); document.write( "Tacoma Car: \"40+%2B+50%2At\"
\n" ); document.write( "Seattle Car: \"0+%2B+70%2At\"
\n" ); document.write( "Where t is amount of time, NOT the time of day.\r
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\n" ); document.write( "\n" ); document.write( "Now, the question of when will the fast (Seattle) car overtake the slow (Tacoma) car becomes, \"At what quantity of t will their positions be equal?\"\r
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\n" ); document.write( "\n" ); document.write( "\"40%2B50t=0%2B70t\"
\n" ); document.write( "\"40=20t\"
\n" ); document.write( "\"t=2\"\r
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\n" ); document.write( "\n" ); document.write( "This means 2 hours after 1 A.M. Why after 1 AM? Because that was when any driving for this situation first begins.
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