Mathematics, 01.06.2021 21:50 yeehaw777
Las distancias de dos trenes desde una estación se pueden representar mediante las ecuaciones que se muestran, siendo t el tiempo en horas y d la distancia en millas.
La distancia del tren A desde la estación viene dada por d = 80t + 450
La distancia del tren B a la estación viene dada por d = 60t + 850
¿Cuántas horas después de que los trenes salieron de la estación estarán los dos trenes a la misma distancia de la estación y cuál será la distancia?
A. 20 horas, 400 millas
B. 140 horas, 2050 millas
С. 20 horas, 2050 millas
D. 10 horas, 400 millas
Answers: 2
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