T is equal in both situations ... d = r X t so d/r = t
c is rate of waters current

14(12 - c) = 7(12 + c)
2(12 - c) = 12 + c
24 - 2c = 12 + c
12 = 3c
4 = c The rate of the waters current is 4 miles per hour.
What are you trying to ask can you post a pic with the exact question?
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There are 20 students in the class.
Answer:
C ig.
Step-by-step explanation:
well, it's not a right angle (90 degrees), it's not a 45 degree angle, and it's not a straight angle (180 degrees), so it's not enough info