Question 126764
going the same distance in both directions means that the times are inversely proportional to the rates


double the speed means half the time __ if half is 5 hrs less, then the whole is 10 hrs


260 mi in 10 hrs is 26 mph


using equations __ rate times time equals distance __ rt=260 __ t=260/r


rt=2r(t-5) __ rt=2rt-10r __ 260=520-10r __ -260=-10r __ 26=r