The use of eletricty in the US in 1902 was 6.03 times 10^9 kilowatt-hours.
The use of eletricty in the US in 1950 was 4.3 times 10^11 kilowatt-hours.
How many times more was the electricity used in 1950 than 1902? Express your answer in Scientific Notation.
To find out how many times more electricity was used in 1950 compared to 1902, we need to divide the electricity used in 1950 by the electricity used in 1902.
(4.3 x 10^11) / (6.03 x 10^9) = 7.14 x 10^1
Therefore, the electricity used in 1950 was 7.14 x 10^1 times more than the electricity used in 1902. This can also be expressed as 71.4 times more in decimal form.