Solve the problem.A deep sea diving bell is being lowered at a constant rate. After 12 minutes, the bell is at a depth of 400 feet. After 55 minutes the bell is at a depth of 1600 feet. What is the average rate of lowering per minute? Round your answer to the nearest tenth.
A. 0.04 ft per min
B. 27.9 ft per min
C. 29.1 ft per min
D. 21.8 ft per min
Answer: B
Mathematics
You might also like to view...
Solve the system. If the system has infinitely many solutions, write the solution set with x arbitrary. 5x - y + z = 8 7x + y + z = 612x + 2z = 14
A. {(x, -x - 1, -6x + 7)} B. {(x, -x + 1, 6x + 7)} C. {(x, -x + 1, -6x + 7)} D. {(x, -x + 1, 6x - 7)}
Mathematics
Solve.A hiking trail is 19,008 meters long. How many kilometers long is the trail?
A. 190.08 km B. 19.008 km C. 1.9008 km D. 1900.8 km
Mathematics
Find x and y.
= 
A. x = 3, y = 4 B. x = 3, y = 3 C. x = 4, y = 4 D. x = 4, y = 3
Mathematics
Add, subtract, or multiply, as indicated. Express your answer as a single polynomial in standard form.4x(x4 + 4x + 2)
A. 4x5 + 16x2 + 8x B. 4x5 + 4x2 + 8 C. 4x4 + 4x2 + 8x D. 8x4 + 16x2 + 8x
Mathematics