Question

karim sent a chain email to 10 of his friends. the number of people who got the email increases by a factor of 1.4 every week. which expression gives the number of people who got the email after 6 weeks?

Answer 1

`P(6) = 10(1.4)^(6) = 75.2`

Explanation:

The number of people who receive the email after t weeks can be modeled by the following equation.

`P(t) = P(0)r^(t)`

In which P(0) is the initial number of poeple who received the email and r is the factor.

Karim sent a chain email to 10 of his friends.

This means that
`P(0) = 10`

The number of people who got the email increases by a factor of 1.4 every week.

This means that
`r = 1.4`

So

`P(t) = 10(1.4)^(t)`

Which expression gives the number of people who got the email after 6 weeks?

`P(6) = 10(1.4)^(6) = 75.2`