Answer:
#6 is x=9 #8 is x=-2 #10 is x=8 #12 is x=-1
Answer:
B) x+y=120; 12x+20y=1720
Step-by-step explanation:
If variables are defined as ...
x = number of student tickets sold
y = number of adult tickets sold
then the problem statement can be modeled by ...
x + y = 120 . . . . . . the total number of tickets sold is 120
12x + 20y = 1720 . . . . . the total collected from ticket sales was $1720
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Total revenue is the sum of the revenues from sales of each ticket type. The revenue from a given ticket type is the product of that ticket price and the number sold.
Answer:
145 i think
Step-by-step explanation:
6 + 8 + 12 = 26 Faces
Edges = Vertices + Faces -2
Edges = 48 + 26 -2
Edges = 72