3) 144 students went on a field trip. Seven
buses were filled and 4 students traveled
in cars. How many students were in each
bus?

Respuesta :

7x + 4 = 144

7x = 140

x = 20

answer: 20 students were in each bus
There where 20 students in each buss, 144 - 4 devide by 7 and there is your answer