S= 15
3s=45
3s/3=45/3
S=15
You have to divide both sides
The answer to the equation is 17
Yes, because the sample is random. If she had chosen the participants in any way other than randomly, it would not be representative of her entire school.
Ni is not correct. To solve
the equivalent quarterly interest rate, the annual interest rate should be multiplied
by the correct ratio. Since the annual interest rate is 4% per year. So in 1 quarter
is equal to 0.25 year.
<span>(4% / year) (0.25 year/ 1
quarter) = 1% per quarter</span>
