Question

The annual average high temperature in a town was 50° in the year 2008 and

55° in the year 2009. What was the percent increase in average high
temperature in this town between the two years?

Answer 1

Given:

The annual average high temperature in a town was 50° in the year 2008.

The annual average high temperature in a town was 55° in the year 2009.

To find:

The percent increase in average high temperature in this town between the two years.

Solution:

The percent increase formula:

`\%\text{ Increase}=\frac{\text{New value - Initial value}}{\text{Initial value}}* 100`

Substitute new value = 55 and initial value = 50 in the above formula.

`\%\text{ Increase}=(55-50)/(50)* 100`

`\%\text{ Increase}=(5)/(50)* 100`

`\%\text{ Increase}=(1)/(10)* 100`

`\%\text{ Increase}=10`

Therefore, the temperature in this town between the two years increased by 10%.