4:20 or 4/20 (pronounced four-twenty) refers to consumption of cannabis and, by extension, a way to identify oneself with cannabis drug subculture.
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If you mean: 4/20 then it is 1/5 in its simplest form
To find the four numbers that have a mean of 5, we can use the formula for calculating the mean: Mean = (Sum of all numbers) / (Total number of numbers). Since we have four numbers, we can denote them as x, y, z, and w. Therefore, the equation becomes (x + y + z + w) / 4 = 5. By solving this equation, we can find the four numbers that have a mean of 5.
The mean of 2, 4, 6 and 8 is 5. In this case, the mean is the same as the average because there are 4 distinct values with a sum of 20.
If you mean: 3x squared -11x -20 = 0 Then: x = -5 or x = 4/3
If you mean: 8x-2y = -20 then y = 4x+10 whereas 4 is the slope and 10 is the y intercept