30. An amusement park charges $27 for adult tickets (a) and $24 for children's tickets (c) Monday the amusement park sold 272 tickets and collected $7.137
Which system of equations is a correct representation of this data?
AO 27a + 24c = 272
51a + 51c = 7.137
CO a+c=272
24a + 27c = 7.137
B. O a+c= 272
27a + 24c = 7.137
D. O a+c= 7.137
27a +24c = 272

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

multiple all that

step-by-step explanation:

27×17