Question

Raul is mixing a cleaning spray. The instructions say to combine 2 parts vinegar and 1 part water. Raul wants to make 24 fl oz of the spray. How many fluid ounces of vinegar and how many fluid ounces of water should Raul use? Show your work​

Answer 1

16 fl oz vinegar, 8 fl oz water.

First, look at your ratio (2:1), and determine how many parts in total there would be. That, of course, is 3 (2 parts vinegar + 1 part water = 3 parts total). Then, divide the total 24 fl oz in the spray by this number to get the number of fl oz in each part of the bottle; with the equation, you should get 24 / 3 = 8 fl oz. Finally, multiply this two each part of the ratio: 2 parts x 8 fl oz = 16 fl oz of vinegar, 1 part x 8 fl oz = 8 oz of water.

Answer 2

16 fl oz Vinegar

8 fl oz Water

Explanation:

The ratio of vinegar to water is 2:1, as you need 2 parts of vinegar for every 1 part of water.

Add these together to get 3, which is the proportion the ratio will be divided into.

Divide the total 24 fl oz by the group of 3, and you work out that each part of the ratio should be scaled up by 8.

Multiply each part of the ratio by 8 to get 8x2 : 8x1. The ratio of vinegar to water is now 16:8, so you need 16 fl oz of vinegar and 8 fl oz of water.