Osvoldo has a goal of getting at least 30\%30%30, percent of his grams of carbohydrates each day from whole grains. today, he ate 220220220 grams of carbohydrates, and 555555 grams were from whole grains. did osvoldo meet his goal? why?

Hi there! Osvoldo did not meet his goal.

(In my answering I suppose you mean 30%, 220 grams of carbohydrates and 55 grams of whole grains, if this is incorrect, please let me know)

Today Osvoldo ate 220 grams of carbohydrates.
10 % of 220 is 22 (divide by 10), and therefore 30 % of 220 is 22 * 3 = 66. 

If at least 66 grams of Osvoldo's total consumption consisted of whole grains, he would have met his goal. However, he only ate 55 grams of whole grains (which is less than 66), and therefore he did not meet his goal.