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 75 seconds with an average speed of 4 feet per second. Find the average speed of the swimmer if it takes him 60 seconds to finish the race.
A. 7 ft/sec
B. 6 ft/sec
C. 4 ft/sec
D. 5 ft/sec
Answer: D
Mathematics
You might also like to view...
Solve the inequality graphically by using a graphing calculator.x4 < x2 - 2x + 3
A. x < -1.76, x > 1.19 B. -1.19 < x < 1.76 C. x < -1.19, x > 1.76 D. -1.76 < x < 1.19
Mathematics
Simplify the expression. Write the answer with only positive exponents. All variables are nonzero.(3x4y)(-9x3y6)
A. -27x12y6 B. -12x7y6 C. -27x7y7 D. -27x7y6
Mathematics
The (r + 1)st term of the expression (a + b)n, 0 ? r ? n, is given by 
an - rbr. Find the specified term.The 5th term of (5x + 3)5.
A. 2025x B. 675x C. 3375x2 D. 1215
Mathematics
Divide.
A. 36 B. 3.6 C. 3.5 D. 35
Mathematics