An earthquake strikes and an isolated area is without food or water. Three crews arrive. One can dispense needed supplies in 60 hours, a second in 30 hours, and a third in 80 hours. How long will take all three crows working together to dispense food and water?

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes