<PRE><B>Question 991718</B>
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 &quot;x&quot;::
(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.</PRE>