SOLUTION: Mike spent half of his allowance going to the movies.he washed the family car and earned 7 dollars.what is his weekly allowance if he ended up with 17 dollars?

Question 1123778: Mike spent half of his allowance going to the movies.he washed the family car and earned 7 dollars.what is his weekly allowance if he ended up with 17 dollars?
Answer by ikleyn(52776) (Show Source): You can put this solution on YOUR website!
.

Let x = Mike's weekly allowance, which is under the question.


Then  is what was left after buying the movies tickets.


Plus to it Mike earned 7 dollars.


The condition says 


 + 7 = 17.


Then   = 17 - 7 = 10;  hence,  x = 2*10 = 20 dollars.


Answer.  Mike's weekly allowance is 20 dollars.

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