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 out how many liters of water will be in the tank after 20 minutes, you can substitute \( t = 20 \) into the expression \( 300 + (-3t) \).

So, substituting \( t \):

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

Now, calculate it step by step:

1. Calculate \( -3 \times 20 \): \[ -3 \times 20 = -60 \]

2. Now substitute back into the expression: \[ 300 + (-60) = 300 - 60 = 240 \]

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