SOLUTION: . Joan drove for 100 miles at x miles per hour. Then she increased her speed by 5 miles per hour and drove 200 additional miles. i. Write a rational function T(x) that gives her

Question 1105426: . Joan drove for 100 miles at x miles per hour. Then she increased her speed by 5 miles per hour and drove 200 additional miles.
i. Write a rational function T(x) that gives her total travel time in hours.
ii. Find T(65) to the nearest minute.

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
speeds are x and x+5 mph
time, T(x)= 100/x + 200/(x+5)
T(65)=100/65+200/70
=4.40 hours or 4h24 minutes
(not rounding until the end produces the same answer)

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