A smoothie shop mixes fruit concentrate and water in a ratio of 2:7 by volume. If the shop makes 4.5 liters of smoothie using this recipe, how many liters of fruit concentrate are used?
A smoothie shop mixes fruit concentrate and water in a ratio of 2:7 by volume. If the shop makes 4.5 liters of smoothie using this recipe, how many liters of fruit concentrate are used?