A water tank already contains 55 gallons of water when Baxter begins to fill it. Water flows into a tank at a rate of 8 gallons per minute. Write an equation to modle this situation. Find the volume of water in the tank 25 minutes after Baxter begins filling the tank

The answer is:

V = 55 + 8m

plug in m = 25

V = 55 + 8 (25) = 255

25 minutes after Baxter begins filling the tank, the volume of water in the tank will be 255 gallons.

Slope:

m = 8 gal/min

For every min the water is on, the volume of water in the tank increases by 55 gallons.

y-intercept: 55

(0,55)

The initial volume of water in the tank was 55 gallons.