At a factory workers are draining a large vat containing water. The water is being drained at a constant rate. The table below shows the amount of water in the vat after different amounts of time.
Time (minutes)
15 20
25 30
Water (liters) 610 540 470 400
Answer the following questions.
E
(a) Choose the statement that best describes how the time and the amount of
water in the vat are related. Then give the value requested.
As time increases, the amount of water in the vat decreases. .
At what rate is the amount of water in the vat decreasing?
5 liters per minute
As time increases, the amount of water in the vat increases.
At what rate is the amount of water was in the vat increasing?
liters per minute
(b) How much water was in the vat when the workers started draining it?