Question

A adult’s ticket costs twice as much as a child’s ticket.The cost of Mr and Mrs Brown and their five children is $3.15.Write a equation for this information

Answer 1

`2x + 5y = $3.15`

Explanation:

2x + 5y = $3.15

There are 2 adults, and 5 children.

The symbol 'x' is used to represent the price of one adult ticket.The symbol 'y' is used to represent the price of one child's ticket.

In all, their total was $3.15

If you need to solve the actual equation:

`x = 2y`

The text explains that one adult ticket costs twice as much as a child's ticket.

If x = 2y then 2x = 4y.

Doubling one side would double the other.

So, 4y + 5y = 9y

9y = 3.15

`(9y)/(9) = (3.15)/(9)`

Equation Answers:

Price of One Child Ticket

`y = 0.35`

Price of One Adult Ticket

`x = 0.70`

To find the adult price, just multiply the child's ticket price by 2 (two).