SOLUTION: Social Science. If there are 6 *10^9 people on Earth and there is enough freshwater to provide each person with 8.79 * 10^5 L, how much freshwater is on the Earth?
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Question 77082: Social Science. If there are 6 *10^9 people on Earth and there is enough freshwater to provide each person with 8.79 * 10^5 L, how much freshwater is on the Earth?
Found 2 solutions by checkley75, ptaylor:
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
(6*10^9)(8.79*10^5)=(6*8.79)(10^9*10^5)=52.74(10^14)=5.274(10^15)L.
Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!
Let x=amount of freshwater on earth
Lets first look at a more simple version of the problem:
If there are 10 people on Earth and there is enough freshwater to provide each person with 2 L, how much freshwater is on the Earth?
Our equation to solve is the amount of water per person times the number of people=the amount of fresh water on earth:
remember,when you multiply exponents you add them
or
-----------------------# of liters of fresh water on earth
Hope this helps------ptaylor
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