The table shows how the amount of water in a bathtub changed while the faucet was on.
Water in Bathtub
Time
Amount of Water
(minutes)
(gallons)
0
2
3
4
6
6
9
8
12
At what average rate did the bathtub fill with water?
• A. 0.6 gallon per minute
• B. 0.67 gallon per minute
O C. 1.5 gallons per minute
• D. 3 gallons per minute
To find the average rate at which the bathtub filled with water, we can divide the total change in water (12 gallons) by the total time (8 minutes).
Average rate = Total change in water / Total time
Average rate = 12 gallons / 8 minutes
Average rate = 1.5 gallons per minute
Therefore, the average rate at which the bathtub filled with water is 1.5 gallons per minute, so the answer is C. 1.5 gallons per minute.