The formula for the sum of the a finite geometric series is this:
Sn = a((1-r^n) / (1-r))
The given values are:
n = 30
a = 0.5 mi
r = 1.10 (10% more each day)
S30 = 0.5 ((1-1.10^30) / (1-1.10))
S30 = 82.25 mi
After 30 days, he will have traveled 82.25 miles.
I think it is −2.666666666666667 but i’m not sure!
Answer:
237 students graduated
Step-by-step explanation:
Subtract 172 from 409, obtaining 237.
237 students graduated
