In a 12-hour period of time, a drawbridge opens 8 times, holding traffic for 15 minutes each time. If a car approaches the bridge during this 12-hour time, find the probability that the bridge is open.

Guest Mar 16, 2021

#2**0 **

*In a 12-hour period of time, a drawbridge opens 8 times, holding traffic for 15 minutes each time. If a car approaches the bridge during this 12-hour time, find the probability that the bridge is open.*

open 8 times for 15 minutes each time

makes a total of open for 120 minutes, which is 2 hours

2

in the 12 hour period, the bridge is open —–— of the time

12

2

i think this means the probability of finding the bridge open is —–—

12

1

this is —– or in decimal form, **16.67**

6

Guest Mar 16, 2021