At the city museum, child admission is $5.60 and adult admission is $9.60. on thursday, 153 tickets were sold for a total sales of $1088.80. how many child tickets were sold that day?

95 child tickets

Step-by-step explanation:

a+c =153       c=( 153-a) you need to plug this for c

9.6a + 5.6(153-a) = 1088.8

9.6a + 856.8 - 5.6a = 1088.8

4a +856.8 = 1088.8

subtract 856.8 on both sides

4a = 232

a=58   (58 adults)

153 - 58 = 95 (95 children)

95*$ 5.6 =  $532

85 *$ 9.6 =$ 556.8

$532 + $556.8 =$ 1088.8

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: