document.write( "Question 640303: car and truck leave at noon traveling in opposite directions. truck's speed is 2/3 of the car. at 2:00PM they are 140 miles apart. What is the car's speed?\r
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Algebra.Com's Answer #403117 by sachi(548) You can put this solution on YOUR website! let the speed of car=x miles/hr \n" ); document.write( "so that of truck =2x/3 miles/hr \n" ); document.write( "in 2 hrs (from noon to 2 pm) \n" ); document.write( "car travels 2x miles & truck 4x/3 miles \n" ); document.write( "both travel in opposite directions \n" ); document.write( "so the distance=2x+4x/3=10x/3=140miles \n" ); document.write( "so x=42 miles/hr=car speed ans \n" ); document.write( " |