Asked by Maria

A hockey team can win, lose, or tie a match. It gets 2 points for a win, 0 points for a loss, and 1 point for a tie. It has lost 10 out of the 28 matches it has played so far, and it has 30 points. Which two equations can be used to find its number of wins, w, and its number of ties, t?
Answered by Reiny
wins --- x
ties --- y

x+y= 18
2x+y= 30
subtract them:
x = 12
then y = 6

wins: 12
losses: 10
ties: 6

check:
2(12) + 0(10) + 1(6) = 30
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