Solve.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 200 seconds with an average speed of 3 feet per second. Find the average speed of the swimmer if it takes 120 seconds to finish the race.
A. 5 feet per second
B. 7 feet per second
C. 6 feet per second
D. 4 feet per second
Answer: A
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Solve the equation.2(x - 2) + 16 = 2(2x + 9)
A. -3 B. 3 C. 5 D. -5
Solve the problem.A rectangular Persian carpet has a perimeter of 192 inches. The length of the carpet is 20 inches more than the width. Solve the equation 192 = 2w + 2(w + 20) to find the width, w, of the carpet. Then find the length, w + 20, of the carpet.
A. Length is 106 in., width is 86 in. B. Length is 58 in., width is 38 in. C. Length is 78 in., width is 58 in. D. Length is 96 in., width is 76 in.
One of the functions below is the derivative function of the other. Identify each of them.
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What will be an ideal response?
Use the addition rule to solve the problem.Give the probability that the roll of a die will show a number less than 7.
A. 
B. 1
C. 
D. 