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?

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.