Answer:
y = 55 + 8x
255 gallons
Step-by-step explanation:
Let x be the number of minutes the tank is being filled with water.
A water tank
- Already contains 55 gallons of water;
- Water flows into the tank at a rate of 8 gallons per minute;
- In x minutes, 8x gallons flow into the tank.
Hence, the tank will contain 55 + 8x gallons of water.
If y gallons is the volume of water in the tank after x minutes, then
y = 55 + 8x
When x = 25, then
[tex]y=55+8\cdot 25\\ \\y=55+200\\ \\y=255\ gallons[/tex]
