In Seans fish tank, there are 6 times as many goldfish as guppies. there are a total of 21 fish in the tank. How many more goldfish are there than guppies?

Please post your answer and I'll check it.

Let X = the number of erasers that Sam half. Let X = the number of erasers that Sari has. X+3=28 4×=28 ×=7 3×=3(7)=21 erasers that Sari has

To solve this problem, we can set up a system of equations. Let's represent the number of guppies as "g" and the number of goldfish as "f".

We know that there are 6 times as many goldfish as guppies, so we can write the equation: f = 6g.

We also know that the total number of fish in the tank is 21, so we can write the equation: f + g = 21.

Now we can solve this system of equations to find the values of f and g.

Substituting the first equation into the second equation, we get:
6g + g = 21
7g = 21
g = 3

Now substitute the value of g into the first equation to find f:
f = 6g = 6 * 3 = 18

Therefore, there are 18 goldfish and 3 guppies in Sean's fish tank. To find how many more goldfish there are than guppies, subtract the number of guppies from the number of goldfish: 18 - 3 = 15. So there are 15 more goldfish than guppies in the tank.