Question

This table shows a linear relationship between the amount of water in a tank and time.

time (minutes) water (gallons)
0 40
2 30
4 20
Which of these statements is true?
A. The water in the tank is increasing at a rate of 10 gallons per minute.

D. The water in the tank is decreasing at a rate of 5 gallons per minute

C. The water in the tank is decreasing at a rate of 10 gallons per minute.

D. The water in the tank is increasing at a rate of 5 gallons per minute.

Answer 1

I think the answer is D (The water in the tank is decreasing at a rate of 5 gallons per minute).

Explanation:

As we can see here, the water in the tank is decreasing at a rate of 10 gallons per 2 minutes.

That would be 2/10. Reduce 2/10 and you will get 1/5. So the final answer would be that the water in the tank is decreasing at a rate of 5 gallons per minute.