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Kate has scored 10 free throws out of 18 tries. She would really like to bring her free throw average up to at least 80%. How many consecutive free throws should she score in or…

Kate has scored 10 free throws out of 18 tries. She would really like to bring her free throw average up to at least 80%. How many consecutive free throws should she score in or…
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Kate has scored 10 free throws out of 18 tries. She would really like to bring her free throw average up to at least 80%. How many consecutive free throws should she score in order to bring up her average to 80%?

User Ennio
by
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1 Answer

5 votes
(10+t)/(18+t)=8/10
8(18+t)=10(10+t)
144+8t=100+10t
44=2t
t = 22 throws
User Mehedi
by
8.1k points
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