Step 1:
<span>Calculate the effective thermal conductivity of the wall or ceiling:
</span>
K_eff = [ (13 ÷ 8)(0.12) + (16 - (13 ÷ 8)) × (0.04)] ÷ 16
K_eff =<span> [ 0.195 + 0.565] </span>÷<span> 16
</span>
K_eff = 0.76 ÷ 16
K_eff = 0.0475 W/ (m K)
Step 2:
Calculate <span>the interior ceiling area:
</span>Area of each of the interior side walls = <span>8.82 m x 8.64 m
= 76.2 m</span>²
Area of the interior ceiling = 8.64 m × <span>8.64 m
</span> = 74.6 m²
H = - k·A·(Δ - T) ÷ <span>(thickness)
</span>
H = - 0.0475 ÷ (379.45 × 20) ÷ 45/8
H = - ( - 0.95 × 379.45 ) ÷<span> 0.1429
</span>
H = <span>2.52 kW </span>
Estimation:
If you estimate it to the thousands place, you would estimate it to be 5,000, then you do 5,000×6 which is 30,000, so your estimate would be 30,000
Actual Answer:
32,034
Answer:
x = -2
Step-by-step explanation:
2(x + 1) = -2
Divide both sides by 2.
x + 1 =
Divide −2 by 2 to get −1.
x + 1 = -1
Subtract 1 from both sides.
x = -1 - 1
Subtract 1 from −1 to get −2.
x = -2
Hope it helps and have a great day! =D
~sunshine~
To be tripled means to be multiplied by 3. So multiply 2 3/4 by 3
2 3/4*3=8 1/4
Therefore the amount of milk needed is 8 1/4 cup
Answer:
V/lh = w
Step-by-step explanation:
V = lwh
To solve for w, we need to isolate w by itself.
Divide both sides by lh
V / lh = lwh/lh
V/lh = w