Posted by Brigette on Thursday, November 15, 2012 at 6:01pm.
A tank initially contains 50 liters of water. A hose adds water to the tank at a rate of 2 liters per minute. Write a linear equation for the amount of water in the tank, W, liters in terms of t, minutes. Then use your equation to find how much water is in the tank after 20 minutes.

Math  Deane, Thursday, November 15, 2012 at 7:36pm
50+2(x)=L water in tank
50+2(20)=L water in tank
50+40=90L water in tank