Question

In January, the depth of a lake was 842 feet. In August, the depth of the lake was 673.6 feet. What is the percentage decrease of the depth of the lake from January to August?

Answer 1

The percentage decrease of the depth of the lake from January to August is 20%

Step-by-step explanation:

To find the percentage decrease of the depth of the lake from January to August, you need to calculate the difference between the two depths and then divide it by the initial depth. Finally, multiply the result by 100 to get the percentage.

Step 1: Calculate the difference: 842 - 673.6 = 168.4

Step 2: Divide the difference by the initial depth: 168.4 / 842 = 0.2

Step 3: Multiply the result by 100 to get the percentage: 0.2 * 100 = 20%

The percentage decrease of the depth of the lake from January to August is 20%.