Answer:
see below
Step-by-step explanation:
He at 220 grams of whole grains and 55 grams where whole grains
He wants to find what percent is whole grains. Let P be the percent
Multiply the total grains by the percent that is the grams that are whole grains
220 * P = 55
Divide each side by 220
220P/220 = 55/220
P =.25
Changing to percent form
25%
He wanted to eat 30%, so he did not make his goal
220 *.30 = 66 gram was his goal
66-55 = 11
He was short 11 grams of his goal
