SOLUTION: Dave decided to do his math homework. He spent first x min to find out what was the assignment. Then he tried to find a pen, which took him twice longer. At last, he did all the pr

Question 902923: Dave decided to do his math homework. He spent first x min to find out what was the assignment. Then he tried to find a pen, which took him twice longer. At last, he did all the problems in 20 min. Compose an algebraic expression showing how much time did Dave spend for his math homework. Find the value of this expression if x = 20.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
The problem states clearly "he did all the problems in 20 min" so that is that. The rest of the time he was unprepared. so yes x=20
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