Solution:
Given Information,
Heat input is ( 
) = 5.5 × 
Btu/h
Combustion efficiency of the boiler (
) = 0.7
Combustion efficiency after turn up (
) = 0.8
Operation Hour (t) = 5200h
Unit cost (c) = 
Calculate heat output from the boiler 
= x
= 5.5 x x 0.7
= 3.85 x Btu/h
Calculate the heat input to the boiler after the tune-up
= / 
= 3.85 x / 0.8
= 4.8125 x Btu/h
Calculate the saved energy after the tune-up
= -
= 5.5 x - 4.8125 x Btu/h
= 0.6875 x Btu/h
Calculate the annual energy saving ( 
)
= x t
= ( 0.6875 x Btu/h ) ( 5200 hr/yr)
= 3575 x Btu/h
Calculate the annual cost saving
Annual cost saving = 
x Unit cost
= 3575 x Btu/h x
= 82225
Answer:
In order to make the distribution to common shareholders, each preferred share must be paid a dividend of:
$5 per share.
Explanation:
The preferred stock is non-cumulative. This implies that XYZ's preferred stockholders are not being owed for the previous two year's dividend that was not paid. Non-cumulative preferred stock does not attract dividend arrears whenever it was not declared. It is cumulative preferred stock that attracts such arrears to be carried forward until they are paid.
Answer: C) total surplus is maximized.
Explanation:
Total surplus refers to the sum of both the producer and the consumer surplus.
When allocation of resources is efficient, it means that the total surplus is maximised because the price that is being charged is the same as the equilibrium price that is required.
At this point, all participants in the market will be better off which means both producers and consumers will be better off.
Marginal cost is the incremental cost incurred for one additional unit.
Marginal benefit is the incremental benefit gained from the one additional unit.
The maximized utility is the concept of getting maximum values from the minimum expenditure.
If you decide to eat one more chip. the change in the total amount gained that comes from this action is the Marginal benefit.
Hence the correct answer is the <u>Marginal benefit</u>
