SOLUTION: For the first 30 km, the bicyclist drove with a speed of v km/hr. For the remaining 17km he drove with a speed which was 2km/hr greater than his original speed. How much time did t

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: For the first 30 km, the bicyclist drove with a speed of v km/hr. For the remaining 17km he drove with a speed which was 2km/hr greater than his original speed. How much time did t      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1042583: For the first 30 km, the bicyclist drove with a speed of v km/hr. For the remaining 17km he drove with a speed which was 2km/hr greater than his original speed. How much time did the bicyclist spend on the entire trip? Let T be the time (in hrs), and find T if
a.) v=15 b.) v=18
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
For the first 30 km, the bicyclist drove with a speed of v km/hr. For the remaining 17km he drove with a speed which was 2km/hr greater than his original speed. How much time did the bicyclist spend on the entire trip? Let T be the time (in hrs),
We can write a time equation using the above information. Time = dist/speed
T = 30%2Fv + 17%2F%28%28v%2B2%29%29
:
find T if
a.) v=15
T = 30%2F15 + 17%2F17
T = 2 + 1
T = 3 hrs
:
b.) v=18
T = 30%2F18 + 17%2F20
T = 1.67 + .85
T = 2.252 hrs