ksanquist8896
07.09.2021 •
Mathematics
En un grupo de 25 alumnos 11 de ellos aportaron $14 cada uno va la fiesta en Navidad cuánto necesitan aportar cada uno de los alumnos restantes para completar $600
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Ответ:
1.5 min
Step-by-step explanation:
rate of larger belt = 300/2 = 150
rate of smaller belt = 300/6 = 50
combined rate = 150+50=200
time at combined rate = 300/200 = 1.5