B. –6x + 6y = 30
C. -6x - 6y = 30
D. 6x - 6y = 30
B) 0.36 and 36%
C) 0.36 and 3.6%
D) 0.036 and 0.36%
B) 0.36 and 36%
just divide 9 by 25 to get the answer,
you will get 0.36 when doing this and just convert it into a percent
then boom you get 0.36 and 36 %
Answer:
4 weeks
Step-by-step explanation:
Step one:
ben has 72 followers on his first day.
He averages 10 new followers each week
let the number of weeks be x
and the total followers be y
y= 72+10x--------1
Sarah also started a Twitter account and
has 100 followers on her first day and averages
3 new followers each week
let the number of weeks be x
and the total followers be y
y= 100+3x--------2
Step two:
let us equate the two expression to get the number of weeks x
72+10x=100+3x
collect like terms
10x-3x=100-72
7x=28
divide both sides by 7
x=28/7
x= 4 weeks
Answer:
see below
Step-by-step explanation:
(a) 48% is a sample statistic because it's based on the responses of 1,259 US residents. It's used to estimate a population parameter.
(b) We can calculate a 95% confidence interval for the proportion of US residents who support marijuana legalization. This interval provides a range, and we can be 95% confident that the true proportion falls within this range.
(c) The confidence interval calculation assumes the data follows a normal distribution. To use this method, we need a sufficiently large sample size, which is met in this case.
(d) To justify the news piece's statement that a majority of Americans support marijuana legalization, we need to check if the confidence interval includes values above 50%. If it does, then it supports the statement.