document.write( "Question 987598: when a car is moving at 108km hr it travels 18km on a litre of petrol if pertrol costs $ 1 62 a litre work out the costs of petrol per minute when driving the car at 108km hr \n" ); document.write( "
Algebra.Com's Answer #608338 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "The car travels 108 km in one hour. \n" ); document.write( ". \n" ); document.write( "Amount of fuel used for 108 km: \n" ); document.write( "108km/(18km/l)=6liters \n" ); document.write( ". \n" ); document.write( "At 108 km/hr the car travels 108 km and uses 6 liters of fuel \n" ); document.write( ". \n" ); document.write( "(6liters/hr)(1hr/60min)=0.1_liter/minute \n" ); document.write( ". \n" ); document.write( "(0.1 liter/minute)($1.62/liter)=$0.162/minute \n" ); document.write( "ANSWER: At 108km/hr the car burns $0.162 of fuel per minute. \n" ); document.write( " |