S=(n/2)(A+t)
x2 x2
2S=n(A+t)
--- --------
n n
2S n(A+t)
---=---------
n n
2S
---=A+t
n
.....2S
A=----- -t
......n
Answer:
x=3 and x=5
Step-by-step explanation:
its half of the bottom number
715=448+(3x)
715-448=3x
267=3x
267/3=x
89=x
89 students
A. x-4; x representing the cost of admission for adults.
b. $3.50
c. $6
Answer: slope(m) for this= 2
m=2
