Answer:
Sus costos unitarios son:
café: $1.3
refresco: $1.1
Explanation:
Planteamiento:
2r + 3c = 5.9
4r + 1c = 6.3
r = costo de un refresco
c = costo de un café
Desarrollo:
Multiplicando por -3 la segunda ecuación del planteamiento:
2r + 3c = 5.9
-12r - 3c = -18.9
-10r + 0c = -13.0
-10r = -13
r = -13/-10
r = 1.3
de la segunda ecuación del planteamiento:
4r + 1c = 6.3
4*1.3 + 1c = 6.3
5.2 + c = 6.3
c = 6.3 - 5.2
c = 1.1
Comprobación:
de la primer ecuación del planteamiento:
2*1.3 + 3*1.1 = 5.9
2.6 + 3.3 = 5.9
Hola, soy berta! Mis amigas y yo vivimos en un apartamento cerca de la universidad. Somos buenas amigas, pero _hacemos__ activiades muy diferentes. Por la manana, yo hago___ ejercicio en el gimnasio y mi amiga Elisa __hace_ su tarea. Por la tarde, mis amigas marta y luisa __hacen_ el trabajo para sus clases. Por la noche, nosotras hacemos__ la cena. Elisa siempre prepara pasta. Yo normalmente __hago_ una hamburguesa. Que __haces_ tu donde vives? Que vas a __hacer__ este fin de semana?
Do you have answer choices?? .. is so I can help.
Answer:In the year 1790, some workers 1. _______________ (discover) the calendar when 2. ____________ (be) making repairs in Mexico City. By order of General Porfirio Díaz, Mexicans 3. ________________ (move) the find to the National Museum of Anthropology in 1885. The Aztec calendar 4. _______________ (be) one of the most important objects of Aztec culture. Not only 5. ________________ (show) the days but 6. _________________ (calculate) how 7. __________________ (move) the Sun, the Moon, and the planet Venus. The Aztecs 8. ________________ (build) this calendar. 9. _________________ (Be) a very large circle-shaped stone and 10. _________________ (weigh) 20 tons. At its center, 11. _________________ (have) the face of Tonatiuh, the sun god, who is surrounded by other symbols 12. _________________ (represent) the universe. The Aztecs 13. ______________ (have) the belief that to maintain the order of the system of the universe 14. ________________ (must) do certain ceremonies. For example, the ancient inhabitants of Mexico City 15 ._______________ (put) the calendar in a horizontal position as if it were a mirror of the sky.
Explanation:
