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15 October, 19:46

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%?

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  1. 15 October, 21:26
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    (10+t) / (18+t) = 8/10

    8 (18+t) = 10 (10+t)

    144+8t=100+10t

    44=2t

    t = 22 throws
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