SOLUTION: A cruise ship made a trip to Vancouver and back. The trip to Vancouver took 8 hours, and the trip back took 12 hours. The ship averaged a speed of 18 km/hour on the trip back. W

Algebra ->  Linear-equations -> SOLUTION: A cruise ship made a trip to Vancouver and back. The trip to Vancouver took 8 hours, and the trip back took 12 hours. The ship averaged a speed of 18 km/hour on the trip back. W      Log On


   

Question 1146339: A cruise ship made a trip to Vancouver and back. The trip to Vancouver took 8 hours, and the trip back took 12 hours. The ship averaged a speed of 18 km/hour on the trip back. What was the ship's average speed on the trip to Vancouver?
Found 3 solutions by Alan3354, josgarithmetic, greenestamps:
Answer by Alan3354(69443) About Me  (Show Source):
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A cruise ship made a trip to Vancouver and back. The trip to Vancouver took 8 hours, and the trip back took 12 hours. The ship averaged a speed of 18 km/hour on the trip back. What was the ship's average speed on the trip to Vancouver?
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the trip back took 12 hours. The ship averaged a speed of 18 km/hour on the trip back.
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Find the distance.
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The trip to Vancouver took 8 hours
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Find the speed.

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
          SPEED        TIME        DISTANCE

To          r            8           d

Back        18          12           d

Same distance length each way.
8r=12%2A18

r=%2812%2A18%29%2F8--------simplify and compute.

Answer by greenestamps(13200) About Me  (Show Source):
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The ratio of times is 2:3; the distances are the same. Therefore, the ratio of speeds is 3:2.

ANSWER: 18*(3/2) = 27km/hr