Question

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?




A.


x + y = 6
y = 420x


B.


x + 6y = 420
y = 6x


C.


x – y = 420
y = 6x


D.


x + y = 420
y = 6x

Answer 1

So the first piece of information we have is that the total number of fish is 420. We can then say that the sum of the two types of fish will equal this:

x + y = 420

Next, we learn that he bought 6 times as many parrotfish as angelfish.

So if he buys 'x' angelfish, then he would buy '6x' parrotfish. Parrotfish is represented by the variable 'y'. So we equate them:

y = 6x


Hence, the system of equations is:

(d)
x+y = 420
y = 6x

Answer 2

oh cool thank you :D

Answer 3

how do i give you a medal?

Answer 4

Can you help me with another one @Pompeii00