SOLUTION: 60kms reaching in 45mins, what is speed of bike?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: 60kms reaching in 45mins, what is speed of bike?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 760576: 60kms reaching in 45mins, what is speed of bike?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Convert minutes to hours because you
want the speed to be in km / hr
( minutes ) x ( hours / minutes ) = hours
+45%2A%28+1%2F60+%29+=+3%2F4+ hours
--------------------------
+d+=+r%2At+
+60+=+r%2A%283%2F4%29+
+240+=+3r+
+r+=+240%2F3+
+r+=+80+
The speed is 80 km / hr