Question

The swimming pool is open when the high temperature is higher than 20^\circ\text{C}20 ∘ C. Lainey tried to swim on Monday and Thursday (which was 33 days later). The pool was open on Monday, but it was closed on Thursday. The high temperature was 30^\circ\text{C}30 ∘ C on Monday, but decreased at a constant rate in the next 33 days. Write an inequality to determine the rate of temperature decrease in degrees Celsius per day, dd, from Monday to Thursday.

Answer 1

Answer: 30° - 3d ≤ 20°

Step-by-step explanation:

Here the constant rate of decreasing the temperature = d degree,

Thus, the total decreasing in three days = 3d degree,

If the temperature on Monday = 30°

Then the temperature n Thursday =  30° - 3d

Since, The swimming pool is open when the high temperature is higher than 20°

⇒ 30° - 3d ≤ 20°

Which is the required inequality to determine the rate of temperature decrease in degrees Celsius per day, d, from Monday to Thursday.

Answer 2

Answer:

Step-by-step explanation:

Q) Write an inequality to determine the rate of temperature decrease in degrees Celsius per day, ddd, from Monday to Thursday.

A #1) 30 - 3d ≤ 20

A #2)d>=10/3