Joshua Psalms T. answered 03/04/16
Tutor
5
(5)
Civil EIT, Former College Professor of Mathematics (in Asia)
First of all, I think the 1st question should be LESS THAN 20 miles but if that's really it then nevermind.
Let x be the miles travelled
RMT Price is = 50 + .50x
UMove Price is = 45 + .75x
We simply put 50 and 45 there because we assume that you won't take more than a day to drive either less than 30 miles or some more than 60 miles.
a. < 30 miles
Using 29;
RMT = 64.5
UMove = 66.75
b. > 60 miles
Using 61;
RMT = 80.5
UMove = 90.75
So both a and b shows RMT as better deal so I think your given is wrong.