There were 37 student tickets and 52 adult tickets
Step-by-step explanation:
Let x be the number of student tickets and y be the adult tickets
Then
According to given statement that total 89 tickets were sold
x+y=89 Eqn 1
And
$5 for an adult ticket and $3 for student ticket ,and total cost $371
3x+5y=371 Eqn 2
From eqn 1

Putting in eqn 2

Subtracting 267 from both sides

Dividing both sides by 2

Putting y=52 in eqn 1

Hence,
There were 37 student tickets and 52 adult tickets
Keywords: Linear Equation, Variable
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Answer:
A
Step-by-step explanation:
Its simple
Let's call the unknown number x.
x+ (50% of x) = 135
x + (0.5x) = 135
1.5x = 135
x = 135/1.5
x = 90
Therefore, the number is 90

so... if you notice, the vertex is at h,k and that'd be the origin, 0,0
so...since the directrix is "p" units from the vertex, so it'd be 2 units from 0,0
now, the parabola has an equation with a positive leading term's coefficient, namely the 1/8 is positive, thus, the parabola is opening upwards, and the directrix is "outside" the parabola, so is below the vertex
that puts the directrix 2 units below 0,0
y = -2