Respuesta :
40x + 50x = 750
90x = 750
x = 750 / 90 = 8.333 hours
40 * 8.33 = 333.4
50 * 8.33 = 416.6
8.33 hours = 8 hours and 20 mintutes
they will meet at 7:20 pm
90x = 750
x = 750 / 90 = 8.333 hours
40 * 8.33 = 333.4
50 * 8.33 = 416.6
8.33 hours = 8 hours and 20 mintutes
they will meet at 7:20 pm