SOLUTION: Each week at her job at the pet store, Maddison must empty the 180-gallon aquarium. With the hose she uses to drain the water, 25 gallons is emptied each hour. Write and graph an e

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Each week at her job at the pet store, Maddison must empty the 180-gallon aquarium. With the hose she uses to drain the water, 25 gallons is emptied each hour. Write and graph an e      Log On


   

Question 1171087: Each week at her job at the pet store, Maddison must empty the 180-gallon aquarium. With the hose she uses to drain the water, 25 gallons is emptied each hour. Write and graph an equation that represents the amount of water remaining in the tank over time. Then calculate how many gallons would be left in aquarium after 4.5 hours.
Answer by ikleyn(52890) About Me  (Show Source):
You can put this solution on YOUR website!
.

The requested equation is


    V(t) = 180 - 25t  gallons,


where V(t) is the remained volume of water, t is the time in hours.


The formula says that the initial volume of water is 180 gallons (at t= 0)

and that 25 gallons is drained each hour.



To answer another question, make calculations ON YOUR OWN by substituting the value t= 4.5 hours to the formula.

Happy calculations (!)