The level of water in a dam was decreasing by 20% each day. If the level of water was 1500cm,what was the level after two days?
2 answers:
Answer:
960 cm.
Step-by-step explanation:
For the first day:
Subtract the primary level of water by the 20% of it. 20% of 1500 is:
(Convert the percent to decimal)
Then subtract 1500 to 300. That would become 1200cm for the first day.
For the second day:
Subtract the level of water from the first day by 20% of it. 20% of 1200 is:
Then subtract 1200 to 240. That would become 960 for the second day.
The level of the water after 2 days is 960 cm.
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