Tim spent half his allowance on the movies. He washed the family car and earned 8 dollars. What is his weekly allowance if he ended up with 12 dollars?

Answer: his weekly allowance is $8

Step-by-step explanation:

Let x represent Tim's weekly allowance.

Tim spent half his allowance on the movies. This means that the total amount that he spent on the movies is x/2. The amount remaining would be x - x/2 = x/2

He washed the family car and earned 8 dollars. This means that the total amount left with him is

x/2 + 8

if he ended up with 12 dollars, it means that

x/2 + 8 = 12

x/2 = 12 - 8 = 4

x = 2 * 4 = $8

The answer is 8$

Step-by-step explanation:

8-12 is 4 times 2 is 8