At the movie theater chid admission is 5.70 and adult admission is 9.90 on Sunday 154 tickets were sold for a total sales price of 1125.60 how many child tickets were sold that day

94 Child tickets were sold.

Step-by-step explanation:

Let x represent child tickets

Let y represent adult tickets

Cost Equation: 5.70x + 9.75y = 1306.10

Quantity Equation: x + y = 173

Multiply the Quantity Equation by -5.70

     5.70x + 9.75y = 1306.10

   -5.70x  - 5.70y = -986.10

                   4.05y = 320.00

                 ÷4.05   ÷4.05    

                          y =   79

x +  y  = 173

x + 79 = 173

x         = 94

a

explanation:

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)