How many liters of water will be in the tank after 20 minutes? You can substitute 20 minutes for t in the expression to solve.

Question

Liters in the tank after t minutes:

300+(−3t)
After 20 minutes, there will be
liters of water in the tank.

Answer 1

To find the number of liters of water in the tank after 20 minutes, substitute \( t = 20 \) into the expression \( 300 + (-3t) \).

\[ 300 + (-3(20)) \]

Calculate \( -3(20) \):

\[ -3(20) = -60 \]

Now substitute this back into the expression:

\[ 300 - 60 = 240 \]

After 20 minutes, there will be 240 liters of water in the tank.