Question

Question 3

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

Time (minutes) Water (gallons)
0 30
5 20
10 10

Which of these statements is true?
Multiple choice question.

A)
The water in the tank is increasing at a rate of 2 gallons per minute.

B)
The water in the tank is increasing at a rate of 10 gallons per minute.

C)
The water in the tank is decreasing at a rate of 2 gallons per minute.

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

Answer 1

C

Explanation:

In five minutes it decreased by 10 gallons (5x2=10), In 10 minutes it decreased by 20 gallons.