Question

A conveyor belt carries supplies from the first floor to the second floor, which is 26 feet higher. The belt makes a 60Á angle with the ground. How far do the supplies travel from one end of the conveyor belt to the other? Round your answer to the nearest foot. If the belt moves at 75 ft/min, how long, to the nearest tenth of a minute, does it take the supplies to move to the second floor?
A. 45 ft; 37 min

B. 37 ft; 22.5 min

C. 30 ft; 0.4 min

D. 15 ft; 1.1 min Reset Selection

Answer 1

The answer is C. 30 ft; 0.4 min 
proof
D= H/sin(60)=  26/0.86=30.02 feet
for D =30ft
V75ft/mn
so t= D/V= 30/75=0.4mn

C. 30 ft; 0.4 min 

Answer 2

the answer is C. 30 ft; 0.4 min  

proof

D= H/sin(60)=  26/0.86=30.02 feet

for D =30ft

V75ft/mn

so t= D/V= 30/75=0.4mn

C. 30 ft; 0.4 min