document.write( "Question 352503: Car A is going 78 mph and is 500 feet behind car B going 60 mph-how long will it take Car A to catch Car B? \n" ); document.write( "

Algebra.Com's Answer #251942 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Rate*Time=Distance
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\n" ); document.write( " $\"R%5Ba%5D%2At=D%5Ba%5D\"$
\n" ); document.write( " $\"D%5Ba%5D=78t\"$
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\n" ); document.write( " $\"R%5Bb%5D%2At=D%5Bb%5D\"$
\n" ); document.write( " $\"D%5Bb%5D=60t\"$
\n" ); document.write( "Convert 500 feet to miles to be consistent.
\n" ); document.write( " $\"D%5Ba%5D=D%5Bb%5D%2B500%2F5280\"$
\n" ); document.write( "Substitute and solve for $\"t\"$ .
\n" ); document.write( " $\"78t=60t%2B25%2F264\"$
\n" ); document.write( " $\"18t=25%2F264\"$
\n" ); document.write( " $\"t=25%2F4752\"$ hrs
\n" ); document.write( "or approximately,
\n" ); document.write( " $\"t=0.00526\"$ hrs
\n" ); document.write( " $\"t=18.9\"$ seconds \n" ); document.write( "

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