Una compañía fabrica focos cuya duración es normalmente distribuida con una media igual a 700 horas y una desviación estándar de 30 horas. Encuentre la probabilidad de que un foco se funda más de 760 horas de uso o menos 700 de uso. AYUD

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

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