Problema Solution
water is being drained from a tank, containing 1000 gallons of water, at a constant rate. After 10 minutes there are 940 gallons of water remaining in the tank. How much water remained in the tank after 1 Minute? 2 minutes? 3 minutes? 27 minutes? x minutes?
Answer provided by our tutors
The constant rate of the drain is:
v = (1000 - 940)/10
v = 60/10 gal per min
v = 6 gal per minute
After x minutes there are 1000 - 6x gallons of water left in the tank.
After 1 minute (x = 1 min)there are:
1000 - 6*1 = 994 gal of water left.
After 2 minutes (x = 2 min) there are:
1000 - 6*2 = 988 gal of water left.
After 3 minutes (x = 3 min) there are:
1000 - 6*3 = 1000 - 18 = 982 gal of water left.
After 27 minutes (x = 27 min) there are:
1000 - 6*27 = 1000 - 162 = 838 gal of water left.