You need to look at this as a proportion and ratio.
If
seventh graders were chosen, that is
of them.
You need to find
of the sixth graders to remain constant.
of 160 = 8 students.
F(t) = 2(0.4)^t
To solve f(-2) we should substitute t = -2 into the equation:
f(-2) = 2(0.4)^(-2)
= 2(6.25)
= 12.5
Answer:
depreciation fee + finance fee APEX
3,000 = 3 x 10 x 10 x 10 = 3 * 10^3
--------------
10^3 * 3 * (640)
= 10^3 * 3 * (600 + 40)
= 10^3 * (1800 + 120)
= 10^3 * 1920
= 1,920,000
Answer:
-12
Step-by-step explanation: