document.write( "Question 275486: a car traveling 60 mph enters a highway and drives for 8 min,then a truck enters the highway going 68mph. How long will it take for the truck to pass the car \n" ); document.write( "
Algebra.Com's Answer #200978 by checkley77(12844) ![]() You can put this solution on YOUR website! D=RT \n" ); document.write( "D=60T FOR THE CAR. \n" ); document.write( "D=68(T-8/60) \n" ); document.write( "SET THE 2 DISTANCES EQUAL & SOLVE FOR T \n" ); document.write( "60T=68(T-4/30) \n" ); document.write( "60T=68T-(68*4/30) \n" ); document.write( "60T-68T=-272/30 \n" ); document.write( "-8T=-136/15 \n" ); document.write( "T=(-136/15)/-8 \n" ); document.write( "T=136/15*1/8 \n" ); document.write( "T=136/120 \n" ); document.write( "T=1.1333 HOURS OR 1 HOUR 8 MINUTES THE TRUCK WILL CATCH THE CAR. \n" ); document.write( "PROOF: \n" ); document.write( "60*1.1333=68(1.1333-.1333) \n" ); document.write( "68=68 \n" ); document.write( " |