La correa transportadora de una estación automática levanta 500 toneladas de mineral hasta una altura de 90 ft en una hora. ¿qué potencia en caballos de fuerza se requiere para esto?

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?