SOLUTION: Mr. Duncan traveled to a city 340 miles from his home to attend a meeting. Due to car trouble, his average speed returning was 5 mph less than his speed going. If the total time

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Mr. Duncan traveled to a city 340 miles from his home to attend a meeting. Due to car trouble, his average speed returning was 5 mph less than his speed going. If the total time       Log On


   

Question 1001931: Mr. Duncan traveled to a city 340 miles from his home to attend a meeting. Due to car trouble, his average speed returning was 5 mph less than his speed going. If the total time for the round trip was 18 hours, at what rate of speed did he travel to the city? (Round your answer to the nearest tenth.)
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Basic uniform travel rates rule, RT=D;
A couple of ways to set up data table; this one uses just one time variable. 
              rate      time      distance
GOING          r         x          340
RETURN        r-5       18-x        340