keyshawn437
11.10.2019 •
Mathematics
Chan rows at a rate of 8 mph in still water. it takes him three hours to row upstream from his house to the park. he rows back home, and it takes him two hours. what is the speed of the current?
which of the following is a clue that would solve this word problem?
a.the rate of chan’s rowing in still water is 8 mph.
b.chan rows from the house to the park.
c.chan rows back from the park to the house.
d.the entire trip takes five hours.
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Ответ:
speed: 8 mph
time traveled: 3 hours
distance?
Average Speed = Distance Traveled / Time Traveled
8 mph = distance / 3 hours
8 mph * 3 hours = distance
24 miles = distance of house to park.
time traveled = 2 hours
average speed = 24 miles / 2 hours
average speed = 12 mph
The clue that would help solve his word problem is B.) CHAN ROWS FROM HIS HOUSE TO THE PARK.
Ответ: