Please help!!!! With this problem
1 answer:
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Answer:
x = -30
cos(x - 30) = ½
Step-by-step explanation:
Look at the picture
We have been given that the upstream speed is and the down stream speed is
.
Let the fisherman traveled a distance of x miles.
The total time of the trip is 6 hours.
Relations between speed (s), time (t) and distance (d) is
Hence,
Time upstream + time downstream = 6
lcm = 10
=>
Cross multiplying,
x = 20 miles .. Answer.