Question

In January, the depth of a lake was 944 feet. In August, the depth of the lake was 519.2 feet. What is the percentage decrease of the depth of the lake from January to August?

Answer 1

Decrease in depth from January to August =
944 feet - 519.2 feet = 424.8 feet.

% Decrease is,

`(424.8)/(944) * 100 \\ 0.45 * 100 = 45\%`

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Answer 2

The percentage decrease of the depth of the lake from January to August is 45%.

Explanation:

The depth of lake in January = 944 feet

The depth of lake in August = 519.20 feet

The difference is =
`944-519.20=424.80` feet

So, the percentage decrease of the depth of the lake from January to August will be =
`(424.80)/(944) *100` = 45%

Therefore, the answer is 45%.