ANSWER:
We have to find new side-lengths of PQR triangle.
Original sides are.
After multiplying by 2.5 we get
These are the new sides of the P'Q'R' triangle.
which of the following are solutions to the quadratic equation check all that apply x ^ 2 + 10x + 25 = 7
2 answers:
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Answer:
The attendance was 198 children, 90 students and 99 adults.
Step-by-step explanation:
We define:
c: children attendance
s: students attendance
a: adult attendance
The equation that describes the total ticket sales is:
We also know that the children attendance doubles the adult attendance:
The third equation is the seating capacity, which we assume is full:
We start by replacing variables in two of the equations:
Then, we solve the remaining equation for a:
Then, we solve for the other two equations:
The attendance was 198 children, 90 students and 99 adults.