Answer the question asked. When necessary, round to the nearest hundredth.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 50 mph
B. 80 mph
C. 40 mph
D. 20 mph
Answer: D
Mathematics
You might also like to view...
Solve the problem.What is the radian measure of the larger central angle made by the hands of a clock at 4:00? Express your answer as a rational multiple of ?.
A. 
radians
B. 
radians
C. 
radians
D. 
radians
Mathematics
Solve the problem.Assume that from 1930 to 1980, the number of deaths from lead poisoning (per 100,000 people) decreased dramatically and could be modeled by 
where x is the year. Determine when, to the nearest year, this death rate was 75 or less by graphing y = f(x) and 
in 
by [0, 200, 25].
A. 1964 or after B. 1960 or after C. 1973 or after D. 1967 or after
Mathematics
Convert to radical notation and simplify.x2/11
A. x
B. 
C. 
D. 
Mathematics
Simplify the expression.-17 - 19 + (-3)
A. -5 B. -1 C. 5 D. -39
Mathematics