Answer:
It just simplifies to <em>x</em>
Step-by-step explanation:
Answer:
z = -0.577
Step-by-step explanation:
sample mean = ( 24.3 + 24.9 + 24.8 ) / 3 = 24.667
n = 3
σ = 1.0
Test statistic:
z = ( 24.667 - 25 ) / ( 1/SQRT(3) )
z = -0.577
Answer:
Step-by-step explanation:
Let x represent the number of adult tickets that were sold.
Let y represent the number of children tickets that were sold.
The auditorium can hold no more than 200 audience members. This means that
x + y ≤ 200
An adult ticket costs $9 and a child's ticket costs $4. The students would like ticket sales of at least $1300. This means that
9x + 4y ≥ 1300
These are the set of inequalities that represents the situation.
The answer will be -3xy - 36x + 3