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Sonbull [250]
3 years ago
11

Yves bought 420 tropical fish for a museum display. He bought 6 times as many parrotfish as angelfish. How many of each type of

fish did he buy?
Which is a system of equations to model the problem if x represents the number of angelfish Yves bought and y represents the number of parrotfish he bought?




x + y = 6
y = 420x

x + 6y = 420
y = 6x

x – y = 420
y = 6x

x + y = 420
y = 6x
Mathematics
2 answers:
Nookie1986 [14]3 years ago
6 0

Answer: D is the right equation.


Step-by-step explanation:

Yves total number of fish is 420

x and y represent the number of fish

^ x + y = 420  (we know the equation is an addition form because of the key word  ''and'')

Then it says ''he bought 6 times as many parrot-fish (y) AS angelfish (x)

^ y = 6x  


mariarad [96]3 years ago
5 0
1)421x=6
   x=70

2)x+6(6x)=420
   x+36x=420
   37x=420
    x=11

3)x-6x=420
   5x=420
   x=84

4)x+6x=420
   7x=420
    x=60
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