Let x equal the number of adult tickets sold.
X + 3X=512
(I put 3x because we know the students sold 3 times as many).
Solve for X.
X+3X=512
4X=512
4X/4=512/4
X=128
Answer: Skewed left, no outlier
Step-by-step explanation: You use the IQR and quartile 1&3 to find the number that defines an outlier. And for this one there are none
Answer:
x = -2 ±√5
Step-by-step explanation:
You want to complete the square by adding the square of half the coefficient of the linear term:
x^2 + 4x + (4/2)^2 = 1 + (4/2)^2
(x +2)^2 = 5 . . . . . simplify
x +2 = ±√5 . . . . . . take the square root
x = -2 ±√5 . . . . . . subtract 2. This is the solution.
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For the problem in the picture, replace x with p in the above.
Every year, the price of the smartphone is the 
of the price of the previous year (since we lose the 
, we remain with the ).
Since can be written as 
, the price after one year will be
After two years, the price is the of the price after one year:
And so on: after three years we have
So, the answer is somewhere between three and four years.
Answer:
YT AND RQ
Step-by-step explanation:
