Math
posted by Tammy .
Chelsea had made six of seventeen freethrow attempts. How many consecutive free throws must she make to raise her percentage of free throws made to exactly 50 percent?

(6+x)/(17+x) = 1/2
12 + 2x = 17+x
x = 5
check:
with 5 more successful throws she made 11 good ones
out of a total of 17+5 or 22
11/22 is 50%
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