We have our equation set up for us:
46-46*x=20
move 20 to the other side an then subtract
46*x=26
divide 46 on both sides
x = 26/46
simplify
x=
13/23 which is around
0.56521..
<h2><u><em>
Rounded, the percentage decrease is </em></u></h2><h2><u><em>
</em></u></h2><h2><u><em>
56.5 percent</em></u></h2>
<u><em></em></u>
-Hunter
So a dime is .10 or 10 cents
a quarter is .25 or 25 cents
12(.10)=$1.2
4(.25)=1
the equations would be
.25(x)
.10(x)
and if you need them combined it would be
.25(x) + .10(x)
:)
Answer:
c=face. b=vertex. a=line
Step-by-step explanation:
Answer:
His 95% confidence interval is (0.065, 0.155).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
For this problem, we have that:
95% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
The lower limit of this interval is:
The upper limit of this interval is:
His 95% confidence interval is (0.065, 0.155).
