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?

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

Percentage of more games won in 2009 = 50%

Number of games won in 2009 will be given by

Overall increase from 2007 through 2009 is given by

Overall percentage increase from 2007 through 2009 is given by

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

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )