Christopher made 30% of the recipe downloaded
He made 12 of the 40 recipes he downloaded from the internet.
He downloaded a total of 40 recipes.
Percentage is is a number or ratio that can be expressed as a fraction of 100. Therefore,
The percentage of the recipe he made can be calculated as follows;
percentage = 1200 / 40 = 30%
Therefore, he made 30% of the recipe downloaded
learn more on equation here: https://brainly.com/question/4345896