The number of traffic violations in a city increased from 12 to 16 in a month.

what is the percent of increase in the number of traffic violations for that month?

round to the nearest percent, if necessary.

20%

25%

33%

75%

I just took the test. The answer is C. 33%

answer: 20

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)