Question

You can purchase 2 sodas for 3 dollars, how much does 6 sodas cost?

Answer 1

if you purchase 2 sodas it’s $3, 4 sodas it’s $6, and 6 sodas it’s $9. so it would be $9

Answer 2

It costs $9

Explanation:

Lets look at the ratio:

2/3

We need x:

6/x

Make an equation using the butterfly method:

3(6) = 2x

Simplify:

18=2x

Divide both sides by 2:

x=9

It costs $9