A pool starts out with 90 cubic meters of water.
Each day the pool is filled with 20 cubic meters of water.
Which equation fits the scenario?
Water cubic meters = 90 cubic meters + number of days * 20 cubic meters
If "w" is the number of cubic meters of water and "d" is the number of days, we can write:
w = 20d + 90
Answer:
w = 20d + 90
