Fancy goldfish x cost $3 each and common goldfish y cost $1 each. graph the function y=20-3x to determine how many of each type of goldfish tasha can buy for $20.

The pairs of goldfish Tasha can buy for $20 are

Step-by-step explanation:

To find the how many type of goldfish that Tasha can buy for $20 is the set of positive ordered pairs.

Let x denote the number of fancy goldfish.

Let y denote the number of common goldfish.

To find how much goldfish can Tasha buy for $20 is to substitute the value for x in the equation

Now, substituting in , we get,

The ordered pair is

Similarly, substituting ,

For ,

For ,

For ,

For ,

For ,

Thus, the pairs of goldfish Tasha can buy for $20 are

answer:

step-by-step explanation:

"exterior angles = 360 / number of sides.

60 = 360 / sides

sides = 360 / 60

sides = 6"