Solve the problem.An express train travels 463 miles between two cities. During the first 
of a trip, the train traveled through mountainous terrain. The train traveled 
per hour slower through mountainous terrain than through level terrain. If the total time to travel between the cities was 9 hours, find the speed of the train on level terrain.
A. 71 mph
B. 39 mph
C. 23 mph
D. 55 mph
Answer: D
You might also like to view...
Solve the problem.A coupon advertises ice cream cones for 0.25¢. Assuming this is the actual price, how many ice cream cones can you get for $6?
A. 2400 B. 240 C. 24,000 D. 24
Use the given information to find the equation of the circle.Center: (-3, 8); passes through the point (0, 12)
A. (x - 8)2 + (y + 3)2 = 9 B. (x + 3)2 + (y - 8)2 = 25 C. (x - 3)2 + (y + 8)2 = 25 D. (x + 8)2 + (y - 3)2 = 9
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.10x2 + 23x + 12
A. prime B. (10x + 3)(x + 4) C. (2x + 3)(5x + 4) D. (2x - 3)(5x - 4)
Find the mode(s) for the given sample data.The speeds (in mi/h) of the cars passing a certain checkpoint are measured by radar. The results are shown below.
A. 42.63 B. 40.9 C. 42.5, 44.5, 40.9 D. 42.5