Mathematics: 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 through 2009?

The hockey team has been great! in 2008 they won

keananashville

09.03.2022

There is overall percentage increase is 80% from 2007 through 2009.

Step-by-step explanation:

Let the total games won in 2007 be 100

Percentage of more games won in 2008 = 20%

Number of games won in 2008 will be given by

$\frac{100+20}{100}\times 100\\\\=\frac{120}{100}\times 100\\\\=120$

Percentage of more games won in 2009 = 50%

Number of games won in 2009 will be given by

$\frac{100+50}{100}\times 120\\\\=\frac{150}{100}\times 120\\\\=1.5\times 120\\\\=180$

Overall increase from 2007 through 2009 is given by

$180-100\\\\=80$

Overall percentage increase from 2007 through 2009 is given by

$\frac{Difference}{Original}\times 100\\\\=\frac{80}{100}\times 100\\\\=80\%$

Hence, there is overall percentage increase is 80% from 2007 through 2009.

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shortyyashaun

12.07.2020

1001,35,0.0350

Step-by-step explanation:

given that a group consists of seven men and seven women. Four people are selected to attend a conference.

a) The number of ways to select four people from the group of fourteen is

= 14C4 = 1001

b) The number of ways to select four women from the group of seven women is

= 7C4 = 35

c) The probability of selecting all 4 women

= $\frac{35}{1001} \\=0.0350$

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