Answer:
ITS AAAAA
3546
56789
546
Step-by-step explanation:
The sum of all three interior angle will be 180°, so
(2x-5)°+(4x-1)°+30°=180°
2x-5°+4x-1°+30°=180°
6x-6°+30°=180°
5x+24°=180°
Subtract 24° for both side
5x=156°
Divided 5 for both side
x=31.2°. Hope it help!
Answer:30° - 3d ≤ 20°
Step-by-step explanation:
We have to represent the rate of temperature decrease in degrees .We will represent this by "d" which stands for degree.
According to the question , temperature decreased at a constant rate in the next three days
Therefore , the total decreasing in three days = 3d degree i.e 3 *d=3d
Temperature on Monday = 30°
Then the temperature on Thursday is this = 30° - 3d
Since, The swimming pool is open when the high temperature is higher than 20°=≤20
= 30° - 3d ≤ 20°
This is the required inequality to determine the rate of temperature decrease in degrees Celsius per day, "d"from Monday to Thursday.
