I will mark you brainiest if you can answer this

Mathematics

1 answer:

elena55 [62]3 years ago

7 0

Answer:

9 buses

12 cars

(Step-by-step explanation:

x=bus x+y=21 --> y=-x+21

30x+4y=318 --> y= -30x/4 + 318/4

y=car

x= 9

y=12

:) hope this help

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