the use of electricity in the US in 1902 was 6.03x10^9 kilowatt-hours
the use of electricity in the US in 1950 was 4.3x10^11 kilowatt hours.
how many time 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 than in 1902, we need to divide the amount used in 1950 by the amount used in 1902:
4.3x10^11 / 6.03x10^9 = 71.29
Therefore, the electricity used in 1950 was approximately 71.29 times more than in 1902.
Expressed in scientific notation, this would be 7.13x10^1.