Answer:
- <u>Translated from Portuguese language:</u>
"The gaseous coal is then burned in a gas turbine cycle and part of the residual heat from the exhaust gases is recovered to generate steam for the steam turbine. Currently, the construction of such plants costs about $ 1500 per kW, but their efficiency is about 45%. The average calorific value of coal is about 28,000,000 k J per ton (that is, 28,000,000 k J of heat released when 1 ton of coal is burned). If the mill is to recover its cost difference in five years from fuel savings, determine what the price of coal should be in $ per ton?"
Explanation:
- The price of coal will be around 37 $ per ton. As, a source of energy the coal is more involved in the different industrial and mechanical processes and increases the level of efficiency of different machines by providing a more unique way to obtain greater results.
It would be the 3rd one, hacia
<span> La profesora MIRÓ a los alumnos.
Ella TOCÓ la guitarra anoche.
Julia y Marcos MIRARON la televisión anoche.
Yo VISITÉ a mi abuela la semana pasada.
Usted LLAMÓ a la tienda por teléfono.
Tú LLEVASTE una falda roja.
Lolita HABLÓ con Pablo en la fiesta anoche.
--Change this verb from the present tense to the preterite tense.
Mi familia baila: Mi familia bailó
Yo hablo : Yo hablé
Yo mando : yo mandé
Nosotros pagamos: Nostros pagamos (anoche) **the verb remains the same
Tú lavas : tu lavaste
Ella lava: Ella lavó
Ramón llama: Ramón llamó
Yo EMPECÉ a las cinco y media. (empezar)
Nosotros no EMPEZAMOS a las nueve. (empezar)
Ella empieza: Ella empezó
Yo pago: yo pagué
Yo saco: yo saqué
<span>
Yo SAQUÉ una buena nota.</span></span>
Esperando. I hope that helps!
