Answer:Brett can invite 19 attendees.
Step-by-step explanation:
Let x=number of attendees
$22/11attendees=$2/1attendee(divide the top and bottom of the fraction by 11)=$38/x
Cross multiplication:
2x=38(1)
2x=38
x=19
To calculate the number of years that the population of the town had been growing we proceed as follows;
A=p(1+r/100)^n
where;
A=final population
p=initial population
n=time
r=rate;
thus, substituting the values in the above formula we get:
28000=20000(1+15/100)^n
1.4=(1+0.15)^n
1.4=1.15^n
introducing natural logs we get:
ln1.4=nln1.15
n=(ln1.4)/(ln1.15)
n=2.4
thus;
n=2.4 years
24-k
I am not really sure if this is what you need but here you go.
The distance between them is 9.