Answer:
Explanation:
Translate theconditions into mathematical terms:
That the pool is open when the high temperature is higher than 20°C means that, if the pool is closed, then the temperature is less than or equal to (≤) 20°C:
And that is the requested inequality.
From that, you can solve for the rate of temperature decrease, d:
Hence, the rate of temperature decrease is greater than or equal to 10/3 degrees Celsius per day, from Monday to Thursday.
Answer:
The inequality is 30-3d≤20
The solution set is d≥10/3
Step-by-step explanation:
i got it from khan academy