a study on students drinking habits asks a random sample of 60 male uf students how many alcoholic beverages they have consumed in the past week. the sample reveals an average of 5.84 alcoholic drinks, with a standard deviation of 4.98. construct a 95% confidence interval for the true average number of alcoholic drinks all uf male students have in a one week period.

b. x- 48 =120

step-by-step explanation:

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200

26- 6 = 20. erica has 20 bottles left