Answer:
Step-by-step explanation: The expected loss is 50 cents, we know that it is more likely to lose than win. It is therefore difficult to get-50, so the overall difference between the two possibilities is 2, 50/200=1/4, and the probability to win is 1/4, and the probability to lose is 3/4. Since (1/4)*3=3/4, the number of black balls is 3 times the number of white balls, so k=15.
Answer:
16
Step-by-step explanation:
forgive me if i am wrong
Same, i need help with geometry too :(
The answer to #5 is 171
The answer to #6 is -344
Answer:
45/r
Step-by-step explanation:
You're just doing 45 divided by r.