The break-even Revenue (at no profit) of a mine is $70M per tonne of ore. It costs $46M per tonne of ore to produce the ore mineral and it costs $3M per tonne of waste to extract and handle the waste. (i) Calculate the BESR. (il)) What would be the profit/lass per tonne of ore, if the mine management decided to change (reduce or increase) the stripping ratio to 3.1?

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Hydro Tasmania has initiated the Battery of the Nation (BotN) strategic initiative to investigate and map out future development opportunities for the State of Tasmania to make a bigger contribution to a future National Electricity Market (NEM). The Tarraleah scheme redevelopment pre-feasibility study was undertaken through this initiative, with funding support from ARENA under the Advancing Renewables Program. For this assignment problem you will be using your knowledge of hydro power to: (1) estimate extended specifications for a new power station on the left bank of the Nive River opposite the existing power station; and (2) to reverse engineer specifications for the Pelton turbines currently installed at the Tarraleah power station. The pre-feasibility design team established basic parameters of a new power station to comprise two Francis turbines with a design flow of 20 m³/s (total 40 m³/s), a net head of 305 m and an installed capacity of ~57 MW (total 113 MW). The Tarraleah…

Suppose you are considering buying a toyota prius, which starts ag 25,000$ and gegs 50 mpg. a similarly equipped Honda Accord will start ag $22,000 but will get 31 mpg.   a) How many miles will it take the Prius to recoup the price difference?   b.) Assuming you drive 1,000 miles per momth, how many years will it take you to recoup the price difference?

What rate of interest compounded annually is the same as the rate of interest of 6% compunded monthly?