Ayodeji A. answered • 02/11/15

Tutor

5
(13)
High School/College Science Tutoring

Let number of child admission tickets=x and number of adult admission tickets =y

The total number of tickets is 176 so x + y=176.

We also know the total sales of the tickets= $1355.20. So the equation would be:

6.30x+9.50y=1355.20

Now we can use the first equation we made and set it equal to y.

x +y= 176 => y=176-x

now since we know y= 176-x we can substitute it into this equation: 6.30x+9.50y=1355.20

Now we have=>

6.30x+9.50(176-x)=1355.20

Solve for X

6.30x +1672- 9.5x=1355.20

-3.2x+1672=1355.20

-3.2x=-316.8

x=99 And since we said X=child admission tickets =>

**There were 99 child admission tickets sold**