Answer:
t = - 24
Step-by-step explanation:
Given t varies inversely as a then the equation relating them is
t = ← k is the constant of variation
To find k use the condition t = 2 when a = - 4
2 = ( multiply both sides by - 4 )
- 8 = k
t = ← equation of variation
When a = , then
t = = - 24
What exactly is the question?
First, we have to find the unit rate (as the question states)
15/5 = 3 kg of paper / 1 week
18 / 3 = 6, so we know that it takes 6 weeks
Answer:
252m^2
Step-by-step explanation:
The formula for surface area of a rectangular prism is 2(hl)+2(hw)+2(wl).
we just plug in the values.
2(12 x 6) + 2(12 x 3) + 2(6 x 3)
= 2(72) + 2(36) + 2(18) then simplify
= 144 + 72 + 36
= 252