SOLUTION: A truck driver travels from New York to Chicago, a distance of 79 0 miles. The tri p west took 12 hours while the return trip took 18 hours due to construction on I80. What i

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A truck driver travels from New York to Chicago, a distance of 79 0 miles. The tri p west took 12 hours while the return trip took 18 hours due to construction on I80. What i      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 723205: A truck driver travels from New York to Chicago, a distance of 79
0 miles. The tri
p west took 12
hours while the
return
trip took 18 hours due to construction on I80. What
is
his
speed on the
eastbound leg?
What
is
h
is
speed on the
west
bound leg?
What is his average speed?

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A truck driver travels from New York to Chicago, a distance of 790 miles.
The trip west took 12 hours while the return trip took 18 hours due to construction on I80.
:
Speed = dist/time,
:
What is his speed on the eastbound leg? That's Chicago to New York!
s = 790/18
s = 43.9 mph
:
What is his speed on the west bound leg? That's New York to Chicago
s = 790/12
s = 65.8 mph
:
What is his average speed?
Average speed = total distance/total time
Av = 2%28790%29%2F%2818%2B12%29
Av = 1580%2F30
Av = 52.67 mph