Question

1c.What is his new texting speed if he practices for 3 months

Answer 1

His new texting speed will be 3.5 characters per second this is because of the texting rate increasing per month is 0.5, just multiply that by 3 because there is 3 months than add that to 2 seconds

Answer 2

`3(1)/(2)` character per second.

Explanation:

James current texting speed = 2 characters per second

Increase in texting speed with practice =
`(1)/(2)` a character per second per month.

If he practices for x months then the expression that will represent his typing speed = 2 +
`(1)/(2)* x`

If x = 3 months then his typing speed after 3 months will be

Speed =
`2+(3)/(2)`

=
`(4+3)/(2)`

=
`(7)/(2)`

=
`3(1)/(2)` character per second.

Therefore, after 3 months of practice his typing speed will be
`3(1)/(2)` character per second.