Which system of equations models this problem?


The variable x represents the number of angelfish Carlos bought and the variable y represents the number of parrotfish he bought.


Carlos bought 405 tropical fish for a museum display. He bought 8 times as many parrotfish as angelfish. How many of each type of fish did he buy?




A

x−y=405

y=8x

B

x+y=405

y=8x

C

x+y=8

y=405x

D

x+4y=8

y=405x