Question

X (minutes) y (boxes)

5 15
6 18
7 21
8 24

Robert works for a shipping company. The table shows the time (in minutes) Robert spends unloading a truck, x, and the number of boxes he unloads from the truck, y. What is the unit rate?
A) 1
B) 3
C) 5
D) 6

Answer 1

3

Explanation:

Unit rate is 3 since y (boxes) increases by 3 each time.

Answer 2

The unit rate is 3 because it increase by 3 each time 15+3=18, 18+3=21, 21+3=24