Suppose a random sample of 1,087 eighth graders found that 570 of them drank two or more caffeinated drinks a day. (a) State the 96% confidence interval. Round to four decimal places. (b) Interpret the 96% confidence interval. (c) Is there evidence to suggest that greater than 50% of eighth graders drink two or more caffeinated drinks in a day at the 5% level of significance?

to rewrite a literal equation you may need to divide by a number, or by a variable.

hope i .

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i