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aliw03
19.08.2019 •
Mathematics
Jason paddled his canoe 24 miles upstream for 4 hours. it took him 3 hours to paddle back. find the speed of the canoe in still water and the speed of the river current.
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Ответ:
Speed of the canoe in still water is 7 miles per hour and speed of the river stream will be 1 miles per hour.
Step-by-step explanation:
Let the speed of canoe paddled by Jason in still water is x miles per hour and speed of the river current y miles per hours.
As per statement of the question,
Resultant speed of canoe upstream = (x - y)
and speed of canoe with the stream = (x + y)
Now as per statement,
x - y = 6 ------(1)
and![(x + y)=\frac{24}{3}](/tpl/images/0179/3871/99f76.png)
x + y = 8 ------(2)
Now we add equation 1 and 2.
(x - y) + (x + y) = 6 + 8
2x = 14
x = 7
By putting x = 7 in equation 2
7 + y = 8
y = 8 - 7
y = 1
Therefore, Speed of the canoe in still water is 7 miles per hour and speed of the river stream will be 1 miles per hour.
Ответ:
Substitute that into
Insert y into
x = - 12, y = 8
Hope this helps. - M