Answer:
47.5
Step-by-step explanation:
50-5+4 =49
49/2 = 24.5
You can roll a total of 6 by rolling (1, 5), (2, 4), (3, 3), (4, 2), or (5, 1). There are 36 total possible rolls that can be obtained, so you roll a total of 6 with probability 5/36.
You can roll a total of 11 by rolling (5, 6) or (6, 5), hence with probability 2/36 = 1/18.
Any of the other remaining 29 outcomes occurs with probability 29/36.
The expected value of your winnings is
$18*5/36 + $72*1/18 - $9*29/36 = -$0.75
so the answer is E.
Answer:
Step-by-step explanation:
<u> 4km</u>
* 
* 
4km ÷ 10.73 km/hr = .37 hr = 22.3 minutes
