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7 July, 11:22

the hockey team has been great! in 2008, they won 20% more games than in 2007 in 2009 they won 50% more games than in 2008 what was their overall percentage increase from 2007 through2008?

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  1. 7 July, 13:19
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    80 %

    Step-by-step explanation:

    Let G₇ = games won in 2007

    In 2008

    G₈ = G₇ + 20 % of G₇

    = G₇ + 0.20G₇

    = G₇ (1 + 0.20)

    =1.20G₇

    In 2009

    G₉ = G₈ + 50 % of G₈

    = G₈ + 0.50G₈

    = G₈ (1 + 0.50)

    = 1.50G₈ Substitute the value of G₈

    = 1.50 (1.20G₇)

    = 1.80G₇

    = G₇ (1 + 0.80)

    = G₇ + 0.80G₇

    In 2009, the team won 80 % more games than in 2007.
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