Asked by Selina
The tornadoes have won 75% of their games. If they their next 4 games, their win percentage goes up to 80%. How many games have they played right now? (Please explain how to solve this problem)
Answers
Answered by
Damon
have played x
have won .75 x
will have won .75 x + 4
will have played x + 4
so
.75 x + 4 = .80 (x +4)
4 - .8*4 = .05 x
4 - 3.2 = .05 x
.8 = .05 x
800 = 5 x
x = 160
have won .75 x
will have won .75 x + 4
will have played x + 4
so
.75 x + 4 = .80 (x +4)
4 - .8*4 = .05 x
4 - 3.2 = .05 x
.8 = .05 x
800 = 5 x
x = 160
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