Ihave 28 red and blue marbles. the ratio of red to blue is 1: 6. how many blue marbles do i have

You have 24 blue marbles.

Step-by-step explanation:

We can solve this question by a system of equations.

I am going to say that:

x is the number of red marbles.

y is the number of blue marbles.

28 red and blue marbles

This means that

The ratio of red to blue is 1:6.

This means that for each red marble(x), we have 6 blue marbles(y). So

y = 6x.

Then

We want the number of blue marbles(y)

You have 24 blue marbles.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.