Solve the problem.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 30 seconds with an average speed of 5 feet per second. Find the average speed of the swimmer if it takes 25 seconds to finish the race.
A. 8 feet per second
B. 6 feet per second
C. 7 feet per second
D. 5 feet per second
Answer: B
Mathematics
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A. x + 6 + 
B. x2 + 6x + 
C. 
- 2 + 
+ 
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Mathematics