A newspaper article reports the results of an election between two candidates. The article says that Smith received 10% of the v
otes and that Murphy received 1 5 of the votes. A reader writes in to complain that the article cannot be accurate. What reason might the reader have to say this?
If all the votes were for Smith or Murphy, then 10% plus ?% should equal ?%, but actually equals ?%.
If all the votes were for Smith or Murphy, then 10% plus ?% should equal ?%, but actually equals ?%.
1 answer:
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Answer:
B. 12.5%
Step-by-step explanation:
Add all the hours together to get 20. We make the assumption that 20 is 100% since it is our output value. We next represent the value we seek with x. From step 1, it follows that 100%=20. In the same vein, x%=2.5.This gives us a pair of simple equations:
100%=20(1)
x%=2.5(2)
By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS (left hand side) of both equations have the same unit (%); we have
=
Taking the inverse (or reciprocal) of both sides gives us this:
>> x=12.5\%
Therefore, 2.5 is 12.5% of 20.