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The admission fee at a zoo is $2 for children and $4 for adults. If 1800 people enter the zoo and $6000 is collected, how many adults went to the zoo?
A) 300
B) 600
C) 1200
D) 1500

Respuesta :

Answer:

C) 1200

Step-by-step explanation:

x= adult, y = kid


x+y=1800


4x+2y=6000


x=1800-y now put that into the 2nd equation


4(1800-y)+2y=6000


7200-4y+2y=6000


4y-2y=7200-6000


2y=1200


y=600


x=1800-600 = 1200


 so 1200 adults and 600 kids

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