Answer:
Explanation:
a) calculate the total avoidable cost in keeping the old machine and buy a new machine:
PARTICULARS KEEP OLD BUY NEW
AMOUNT($) AMOUNT($)
Opportuinty cost of buying 40,000
the old machine
Purchase price 150,000
Operating expenses
(50,000 × 4 years) 200,000
Operating expenses
18,000 × 4 years) 72,000
TOTAL AVOIDABLE COST 240,000 222,000
b)Decision:
Since the cost of operating the new machine is lower,it should be replaced
Answer:
V₂ = 1.51L
Explanation:
According to Boyle's law:
P₁V₁ = P₂V₂
From the given parameter
P₁ = 153kPa
V₁ = 3.00L
P₂ =304kPa
V₂ = ?
Making V₂ the subject of the formula, we have:
V₂ = P₁ V₁/P₂
V₂ = 153 ₓ 3/304
V₂ = 1.51L
All atoms that are considered as alkali metals have one valence electron on the outermost shell.
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Answer:Water, a substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. It is one of the most plentiful and essential of compounds. A tasteless and odorless liquid at room temperature, it has the important ability to dissolve many other substances.