document.write( "Question 962534: two cars are driving on the same highway. car a is 5 miles ahead car b and is traveling 45 mph. car b is traveling 55 mph. how many minutes will it take for car b to catch up with car a \n" ); document.write( "

Algebra.Com's Answer #588108 by hkwu(60) $\"\"$ $\"About$

You can put this solution on YOUR website!
You have two equations:
\n" ); document.write( " $\"y=45x%2B5\"$
\n" ); document.write( " $\"y=55x\"$
\n" ); document.write( "The first equation is how far A has travelled, and the second is how far B has travelled. Substitution gives
\n" ); document.write( " $\"55x=45x%2B5\"$
\n" ); document.write( " $\"10x=5\"$
\n" ); document.write( " $\"x=1%2F2\"$
\n" ); document.write( "The cars will meet each other after half an hour of driving. \n" ); document.write( "

\n" );