Answer: Didn't flip the greater than sign to lesser than.
Step-by-step explanation: When dividing an inequality by a negative the greater than or less than sign switches.
Answer:
(a) $12,000. It is reasonable since profit is positive
(b) $6,000
Step-by-step explanation:
(a) The promoter's expected profit is given by the product of his potential earnings by the probability that it does not rain, minus the product of his potential losses by the probability of rain:

The promoter's expected profit is $12,000, it is a reasonable criterion since profit is positive.
(b) An insurance company should charge the product of the full potential losses by the probability of rain:

An insurance company should charge $6,000.
The answer is 15. There are more girls than boys. 27 divided by 2 is 13.5. As the ratio is 5:4 the number of girls must be higher than 13.5, which cancels out 12 and 9. 54 is too great so the answer is 15.
Answer:
X = 12
Step-by-step explanation:
First you subtract 1. That gives you:
x/6 = 2.
Then you multiply by 6 to cancel out the denominator under the x. That gives you:
x = 12.
That is the value of X.