Using the relation between velocity, distance and time, it is found that a reasonable estimation of the current is of 1 mph.
<h3>What is the relation between velocity, distance and time?</h3>
Velocity is <u>distance divided by time</u>, hence:
Upstream, against the current, he traveled 3 miles in t hours, hence the equation is:
Downstream, with the current, he traveled 3 miles in 4 - t hours, hence the equation is:
Hence:
Then, taking the two equal equations:
12 = -4t² + 16t
4t² - 16t + 12 = 0
t² - 4t + 3 = 0
(t - 3)(t - 1) = 0.
The current is positive, hence:
c = 2 - 1
c = 1 mph.
More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569
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