If Pedro wins, he gets 5 points. If the computer wins, it gets 2 points. They play 49 games and end with a tie score. How many games did the computer win?

Question

Pedro played checkers with a computer.

Answer 1

use3 algebra!  let p = # games won by Pedro, so then the computer won 49-p games.

 

since it's a tie score, 5p = 2(49-p).   solve for p, and then compute 49-p = # games won by computer.