Solve the problem.Erin was driving home from college. During the first day of driving, Erin averaged 62 miles per hour. On the second day, she drove at an average speed of 72 miles per hour. If her total driving time for the two days was 11
hours and the distance traveled was 768 miles, what was Erin's driving time for each day?
A. first day: 6 hr
second day: 5
hr
B. first day: 7 hr
second day: 4
hr
C. first day: 5 hr
second day: 6
hr
D. first day: 5
hr
second day: 6 hr
Answer: A
You might also like to view...
Multiply using Napier rods.50 × 175
A. 8700 B. 17,500 C. 8800 D. 8750
Find the domain and range of the inverse of the given function.f(x) = 
, x ? 0
A. Domain: (-?, 0}; range: [-5, 0) B. Domain: (0, 5]; range: [0, ?) C. Domain and range: [0, ?) D. Domain: [0, ?); range: (0, 5]
Find the inverse of the function.K = {(-6, -3), (3, 6), (-9, 7), (9, -7)}
A. K-1 = {(-7, -9), (-9, 3), (-3, -6), (7, 9)}
B. K-1 = {(-3, -6), (6, 3), (7, -9), (-7, 9)}
C. K-1 = {(-6, - 
), (3, 
), (-9, 
), (9, - 
)}
D. K-1 = {(-7, -9), (6, 3), (-3, 3), (7, 9)}
Find the volume specified. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the volume of a feed bin having the shape of a right circular cylinder of radius 4 ft and height 6 ft topped by a right circular cone of the same radius and height 3 ft.
A. 351.6 ft3 B. 301.4 ft3 C. 602.8 ft3 D. 100.4 ft3