Answer: 53.1%
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Explanation:
The change from 76.1 to 116.5 is 40.4
This means that 40.4 more million people voted in the second year compared to the first
Divide this difference (40.4 million) over the original amount (76.1 million) to get
40.4/76.1 = 0.53088 which converts to 53.088% and that rounds to 53.1%
When the base is the same, and it is a ÷, subtract the exponents (if it is a ×, add the exponents):
-11/3-(-2/3)=-9/3=-3
4^(-3)=1/4³=1/64
the first choice is correct.
Answer: option B and D (1000m/km and minute/60 second)
In this question, we have two unit that needed to be converted, kilometer/minutes into meter/second.
First, we need to convert km into the meter. One kilometer is equal to 1000 meter. To change kilometer into the meter, the unit used for multiplication should be 1000m/km which is option B.
Then we need to convert minute into the second. One minute is equal to 60 seconds. To change "/minute" into "/second" the multiplication unit should be minute/60 second which was option D
