SOLUTION: a man travels in a motorized boat at the rate of 15 kph from his barrio to the city and comes back at the rate of 12 kph. if his total time of travel is 3 hrs. find the distance fr

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: a man travels in a motorized boat at the rate of 15 kph from his barrio to the city and comes back at the rate of 12 kph. if his total time of travel is 3 hrs. find the distance fr      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 619181: a man travels in a motorized boat at the rate of 15 kph from his barrio to the city and comes back at the rate of 12 kph. if his total time of travel is 3 hrs. find the distance from the barrio to the city
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

a man travels in a motorized boat at the rate of 15 kph from his barrio to the city and comes back at the rate of 12 kph. 

if his total time of travel is 3 hrs. find the distancehighlight%28x%29 from the barrio to the city

 D = rt   OR    D/r = t

  x%2F15mph+%2B+x%2F12mph+=+3hr   |Multiplying thru by 60 so as all denominators = 1

   4x + 5x = 180

    9x = 180

     x = 20mi, the distance from the barrio to the city