Question 991718: If joe wins 18 of 30 games against mike. How many games in a row would joe have to win to have a 75% winning record Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! If joe wins 18 of 30 games against mike. How many games in a row would joe have to win to have a 75% winning record
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Solve::
Let the number of wins he needs be "x"::
(18+x)/(30+x) = 3/4
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4(18+x) = 3(30+x)
72+4x = 90+3x
x = 18 (# he would have to win)
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Proof (18+18)/(30+18) = 36/48 = 3/4 = 0.75
Cheers,
Stan H.
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