7 kids and 2 adults are going to the circus. Kid's tickets are on sale for only half the price of adult tickets. The total cost is $70. How much is one kids ticket? How much is one adult ticket?

Let a = cost of an adult ticket.

2a + (7 * 0.5a) = 70

2a + 3.5a = 70

5.5a = 70

a = 12.73

To find out the cost of one kids ticket, we need to determine the price of an adult ticket first.

Let's assume the cost of one adult ticket is 'x'.

Since kids tickets are on sale for half the price of adult tickets, the cost of one kids ticket would be '0.5x'.

According to the given information, there are 7 kids and 2 adults going to the circus, and the total cost is $70.

To find the cost of one adult ticket, we multiply the number of adults (2) by the price of one adult ticket (x).

So, the total cost for adults would be 2x.

The total cost for kids would be the number of kids (7) multiplied by the price of one kids ticket (0.5x).

Since the total cost for both adults and kids is $70, we can set up an equation:

2x + 7 * 0.5x = 70

Simplifying, we get:

2x + 3.5x = 70

Combining the 'x' terms:

5.5x = 70

To solve for 'x', we divide both sides of the equation by 5.5:

x = 70 / 5.5

Calculating, we find that x is approximately 12.73.

So, the cost of one adult ticket is approximately $12.73.

Since the cost of one kids ticket is half the price of an adult ticket, the cost of one kids ticket would be half of $12.73:

0.5 * 12.73 = $6.37

Therefore, one kids ticket costs approximately $6.37, and one adult ticket costs approximately $12.73.