Lisa sends an email to five friends. The next day, each of Lisa's friends forwards the email to five more people. The (mathematical) process continues for a few days. Which function represents the number of people who will receive the email on the nth day?

A) cn = 5n

B) cn = 5n

C) cn = n + 5

D) cn = n5 + 5

Question

Mathematics

Marissa Vaughan

3 November, 09:29

Lisa sends an email to five friends. The next day, each of Lisa's friends forwards the email to five more people. The (mathematical) process continues for a few days. Which function represents the number of people who will receive the email on the nth day?

A) cn = 5n

B) cn = 5n

C) cn = n + 5

D) cn = n5 + 5

+5

Answers (1)

Know the Answer?

Josephine Christensen · Answer 1

cn=5^n

Step-by-step explanation:

Because every day five times the number of people that have it get the email. So on the first day it's 5, the second 25, the third 125, the fourth 625, so on and so fourth.