Suppose that the minimum number of buses required during the ith hour of the day be denoted by bi (i=1,…,24). Each bus works for 6 consecutive hours. If the number of buses during the ith hour is more than bi, then a cost (Ci) incurs per hour per bus. Formulate the problem as a linear programming problem to minimize the total cost of extra buses.

answer: a.   one is a factor of every whole number since every number is divisible by itself.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

the answer is b.

step-by-step explanation: