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Almost a billion people on the planet don’t have access to clean drinking water.” If there are 6.9 x 109 people in the world, then approximately what percent of them live without clean drinking water? Round to the nearest tenth of a percent.

Sagot :

The percent of them that live without clean drinking water is; 14.5%

How to find the percentage?

We know from scientific notation that;

1 billion = 1 * 10⁹

Now, we are told that there are 6.9 * 10⁹ people in the world. Thus, if almost a billion people on the planet don't have access to clean drinking water, then the percent of them that live without clean drinking water is;

(1 * 10⁹)/(6.9 * 10⁹) * 100%

= 14.5%

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