Choose the correct answer.

Elena bought 320 tropical fish for a museum display. She bought 7 times as many triggerfish as parrotfish. How many of each type of fish did she buy?

Which is a system of equations to model the problem if x represents the number of parrotfish Elena bought and y represents the number of triggerfish she bought?

A.

x + y = 7

y = 320x

B.

x + 7y = 320

y = 7x

C.

x - y = 320

y = 7x

D.

x + y = 320

y = 7x

Question

10 January, 15:26

+5

Answers (2)

Know the Answer?

Janessa Nichols · Answer 1

The answer is D since the total amount of fish bought was 320 and because she bought 7 times as many tigerfish (y) as parrotfish (x).

Hannah Abbott · Answer 2

Total number items bought is

x + y = 320

because she bought 7x = y i believe the answer is D