Mathematics: If about 1/40 of the earths water is fresh water. About 3/10 of the earths fresh water is ground water. What fraction of the earths water is ground water.

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If about 1/40 of the earths water is fresh water.

alyssashae1818

19.01.2022

3/400

Step-by-step explanation:

Let w represent earth's water

let f represent fresh water and let g represent ground water

$f = \frac{1}{40}w$

$g =\frac{3}{10}f = \frac{3}{10}(\frac{1}{40}w)\\ \\g = \frac{3}{400}w$

Therefore, fraction of earth's water,w, that is ground water = 3/400

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