The ratio of blueberries to strawberries is 2:9. If there are 81 strawberries, how many blueberries are there?

Answer 1

The ratio of blueberries to strawberries is 2:9, which means that for every 2 blueberries, there are 9 strawberries.
If there are 81 strawberries, we can set up the following proportion: 2/9 = x/81
Solving for x, we get: x = (2/9) * 81 = 18
Therefore, there are 18 blueberries.