SOLUTION: a cruise ship left port 28 and traveled south. 1 hour later a fishing boat left, traveling at 5 km/h faster in an effort to catch up to it. after 4 hours the fishing boat caught up
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: a cruise ship left port 28 and traveled south. 1 hour later a fishing boat left, traveling at 5 km/h faster in an effort to catch up to it. after 4 hours the fishing boat caught up
Log On
Question 695957: a cruise ship left port 28 and traveled south. 1 hour later a fishing boat left, traveling at 5 km/h faster in an effort to catch up to it. after 4 hours the fishing boat caught up to it. find the cruise ships average speed Answer by checkley79(3341) (Show Source):
You can put this solution on YOUR website! D=RT
D=R(4+1) FOR THE CRUISE SHIP.
D=(R+5)*4 FOR THE FISHING BOAT.
R(4+1)=(R+5)*4
5R=4R+20
5R-4R=20
R=20 MPH. SPEED OF THE CRUISE SHIP.
PROOF:
20(4+1)=(20+5)*4
20*5=25*4
100=100
(