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Water usage varies greatly in different countries, from as little as 20 liters a day

Water usage varies greatly in different countries, from as little as 20 liters a day-example-1
User Tatsh
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287.1 billion because that’s what it is when I calculated
User Adan
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Answer: 287.1 billion liters

Explanation:

Water usage per person: 30 liters/day

World population: 9.57 * 10^9

Total water needed = Water usage per person * World population

Total water needed = 30 liters/day * 9.57 * 10^9

To simplify the calculation, we can express 9.57 * 10^9 in scientific notation:

Total water needed ≈ 30 liters/day * 9.57 * 10^9

To multiply the two values, we multiply the numbers and add the exponents:

Total water needed ≈ (30 * 9.57) * 10^(0 + 9)

Total water needed ≈ 287.1 * 10^9

Now, we can convert the result back to standard notation:

Total water needed ≈ 287,100,000,000 liters

Therefore, if every person in the world used 30 liters of water a day, the total amount of water needed for one day would be approximately 287.1 billion liters.

User Skjagini
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