At least have 18 bottles. Or in other case 17.4
Answer: There are no solutions.
Step-by-step explanation: x - 5/3 = x - 3/5
x + -5/3 = x + -3/5
x + -5/3 - x = x + -3/5 - x
-5/3 = -3/5
-5/3 + 5/3 = -3/5 + 5/3
0 = 16/15
If a, b, c is an arithmetic sequence then a + c = 2b
a = 5, b = 9, c = 15
subtitute
a + c = 5 + 15 = 20
2b = 2 · 9 = 18
20 ≠ 18
Answer: The sequence 5, 9, 15 is not an arithmetic sequence.
Teh probability that the first marble is blue is 6/16
teh second being red is 10/15
so multiply them
and u get 1/4
Answer: 
Step-by-step explanation:
Given
The sprinkler can water the area up to
i.e.
is the radius
If the screw leads to a reduction of 25% in radius, then the new radius is

So, the area corresponding to this radius

Thus, the maximum area that can be covered is 