8/3 write as a mixed fraction
2 answers:
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Answer:
15 early tickets were sold and 5 regular tickets were sold.
Step-by-step explanation:
Let x be the number of early bird tickets sold and y be the number of regular tickets sold.
Total number of tickets sold = 20
Thus, we can write the equation,
Cost of early bird ticket = $10
Cost of regular tickets = $15
Total cost = $225
Thus, we can write the equation,
We solve the equation by elimination method by multiplying first equation by 10 and subtracting.
Thus, 15 early tickets were sold and 5 regular tickets were sold.
Answer:
Yes, the following equation is a quadratic function in vertex form
Step-by-step explanation:
we know that
The <u>quadratic function</u> of the vertical parabola into <u>vertex form</u> is equal to
where
(h,k) is the vertex of the parabola
If the <u>coefficient</u> a is > 0 ----> the parabola open upward (vertex is a minimum)
If the coefficient a is < 0 ----> the parabola open downward (vertex is a maximum)
in this problem we have
The <u>squared term</u> contain the x-coordinate of the vertex
The <u>constant term</u> is the y-coordinate of the vertex
The vertex is the point (2,6)
The coefficient is equal to
----> open upward (vertex is a minimum)