When a truck full of boxes arrives at the Kensington Post Office, Tammy unloads the truck by placing the boxes on a conveyor belt. Tammy's coworkers are impressed with how fast Tammy does her job. There is a proportional relationship between the time (in minutes) Tammy spends unloading the truck, x, and the number of boxes she unloads from the truck, y.
The equation that models this relationship is y=4x.
At this rate, how long does it take Tammy to unload 16 boxes from the truck? Write your answer as a whole number or decimal.
To find out how long it takes Tammy to unload 16 boxes from the truck, we can use the equation y = 4x where y is the number of boxes and x is the time in minutes.
Plugging in 16 for y, we get:
16 = 4x
Solving for x:
x = 16 / 4
x = 4
Therefore, it takes Tammy 4 minutes to unload 16 boxes from the truck.