If there are 6 x 10^9 people on the Earth and there is enough freshwater to provide each person w/ 3.2 * 10^8 L, how much freshwater is on the Earth?
2007-04-05 04:47:32 · 4 answers · asked by Jessica 1 in Environment
Just multiply the two numbers together.
(6 x 10^9)(3.2 x 10^8) = (6*3.2) x 10^(9 + 8) = 19.2 x 10^17 = 1.92 x 10^18
Note that I started by reordering the factors, which we can do by the associative and commutative properties of multiplication. Then I used the fact that (a^b)(a^c) = a^(b+c) to calculate the power of 10. Then I rewrote it in scientific notation by making sure that my base number was between 1 and 10.
2007-04-05 04:53:01 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
Doing the multiplication gives me 1.92 x 10^18 L.
2007-04-05 04:52:10 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
The answer is 1.92 Ã 1018 L.
2007-04-05 04:53:11 · answer #3 · answered by mdmajeti 3 · 0⤊ 0⤋
if this is a hypothetical Q. then the answer doesn't matter, if its data you believe is true, than prove theres that much. don't say well such and such did the work. did they factor in the frozen water, its still fresh.. so do the math,,
2007-04-05 05:23:27 · answer #4 · answered by armando j 3 · 0⤊ 1⤋