Question 5866
80 = car 1 rate
x=car 2 rate
the distance when car 2 overtakes car 1 will be equal
the time for car one is 9 hours
the time for car two is 6 hours
rate*time=d
because the distance for both is the same we have two equations we can set equal to one another:
80(9)=x(6)
720=6x
120=x
car two must travel 120 kmh