d(4) = 12(4) + 20 = 48 + 20 = 68
This means that after 4 hours, Joanna has cycled 68 miles.
Select the correct answer from each drop-down menu.
Let d(t) be the total number of miles Joanna has cycled, and let t represent the number of hours before stopping for a break during her ride.
d(t)=12t+20
So, d(4) =
. This means that after ___
Joanna___
.
1 answer