The ratio for red and blue skittles is 3:5. There are 20 more blue skittles. how many red skittles are there?

r/b = 3/5

5r = 3b

20 + r = b

5r = 3(20 + r)
5r = 60 + 3r
2r = 60
r = 30
b = 50

ratio is 30/50 or 3/5

To solve this problem, we can set up a system of equations based on the given information.

Let's assume the number of red skittles is "x" and the number of blue skittles is "y".

According to the given ratio, we know that the number of red to blue skittles is 3:5. Therefore, we can write the equation:

x/y = 3/5

We also know that there are 20 more blue skittles than red skittles:

y - x = 20

Now we have a system of equations.

To solve for the number of red skittles, we can use the second equation and solve for y:

y = x + 20

Substituting this value of y into the first equation:

x / (x + 20) = 3/5

Now we can cross-multiply:

5x = 3(x + 20)

Expanding and simplifying the equation:

5x = 3x + 60

2x = 60

Dividing both sides by 2:

x = 30

Therefore, there are 30 red skittles.