SOLUTION: A cabin cruiser travels 20 miles in the same time that a power boat travels 40 miles. The cruiser travels 5 mph slower than the power boat. Find the speed of each boat.

Question 116870:
A cabin cruiser travels 20 miles in the same time that a power boat travels 40 miles. The cruiser travels 5 mph slower than the power boat. Find the speed of each boat.
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
SEEING AS THE TIMES ARE EQUAL THEN D/(R-5) FOR THE CRUISE=D/R FOR THE POWER BOAT:
20/(R-5)=40/R CROSS MULTPLY
40(R-5)=20R
40R-200=20R
40R-20R=200
20R=200
R=200/20
R=10 MPH FOR THE POWER BOAT.
10-5=5 MPH FOR THE CRUISER.
PROOF
20/5=40/10
4=4

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