Answer:
250
Step-by-step explanation:
36% are rabbits, and 28% are dogs. That means the percent that are hamsters is:
100% − 36% − 28% = 36%
There are 160 dogs and hamsters, which are 28% + 36% = 64% of the pets. Therefore, we can write and solve a proportion:
160 / 64% = x / 100%
x = 250
There are a total of 250 pets.
$-12
In rolling a single die, there are 6 possible outcomes. To win, there are two possible outcome making the probability equal to 2/6. Moreover to loss, there are 4 possible outcomes, making the probability equal to 4/6.Calculating the cost,
(2/6)($36) - (4/6)($36) = -12
Thus, the expected value of the game is $-12.
