Answer:
135
Explanation:
Substitute 3 and 9 for a & b
5(3)(9)
= 135
You haven't provided the $ or % that he gets, but I will attempt to use algebraic terms to explain it instead.
If the salesman sells a car for $<em>a</em> and gets <em>b</em>% of the sale price as commission, then what you need to do is divide the <em>a</em> by 100, then multiply it by <em>b</em> to find out <em>b</em>% of <em>a</em>. This will be the commission that he will earn.
<em>a </em>/ 100 x <em>b</em> = commission earned in $
Edit
<em>You've now supplied me with the $ and %, let me explain it again.</em>
To find out the commission that he will earn, you divide 8,100 by 100 then multiply it by 9.
8,100 / 100 = 81
81 x 9 = $729 commission earned.
<h2>
Answer:You can buy a ticket.</h2>
Step-by-step explanation:
It is given that
people bought tickets in
seconds.
So,
people can buy tickets in a second.
It is given that the current time is
and movie starts at
.
So there is
until movie starts.
In
minutes,the number of persons that can buy tickets are
.
So,
people can buy tickets in
minutes.
Since there are only
people in front of you,you can buy a ticket.
Answer:
a) 0.6032
b)
Lower limit: 0.48
Upper limit: 0.72
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
.
Question a:
In a random sample of 63 professional actors, it was found that 38 were extroverts.
We use this to find the sample proportion, which is the point estimate for p. So

Question b:
Sample of 63 means 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:

Rounding to two decimal places:
Lower limit: 0.48
Upper limit: 0.72