Question

What is the approximate percent change in a temperature that went down from 120 degrees to 100 de OThe percent change is approximately 17%. OThe percent change is approximately 20%. The percent change is approximately 80%. OThe percent change is approximately 120%.

Answer 1

We can calculate the percent change by calculating:

`\text{ \%change}=\frac{\text{ final state-initial state}}{\text{ initial state}}\cdot100\text{ \%}`

In this case, the initial state is 120 degrees and the final state is 100 degrees.

Then, we can calculate:

`(100-120)/(120)=-(20)/(120)\approx-0.167=-17\text{ \%}`

The percent change is approximately 17% (negative).