Question 505940
A container ship left thr Dania Pier and traveled north. An aircraft carrier left four hours later traveling at 30 mph in an effort to catch up to the container ship. After traveling for eight hours the aircraft carrier finally caught up. What was the container ships average speed?
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Container ship DATA:
time = 12 hrs ; rate = r mph ; distance = rt = 12r miles
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Aircraft carrier DATA:
time = 8 hrs ; rate 30 mph ; distance = rt = 240 miles
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Equation:
distance = distance
12r = 240
r = 20 mph (container ship rate)
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Cheers,
Stan H.