SOLUTION: in a certain football league, the only ways to score are to kick a field goal for 3 points and score a touchdown for 7 points. How many positive scores cannot possibly be obtained

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Question 32721: in a certain football league, the only ways to score are to kick a field goal for 3 points and score a touchdown for 7 points. How many positive scores cannot possibly be obtained by a team in this game?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
1,2,4,5,8,and 11 cannot be scored
3,6,9,12 are combined with 7,14,21,34 to give possible scores