A protein bar has 33% of the protein you need daily. You must get the remaining 12 grams of protein from other sources

protein-bar

#1

a protein bar has 33% of the protein you need daily. You must get the remaining 12 grams of protein from other sources. Approximately how many grams of protein do you need daily? Round your answer to the nearest tenth of a gram.

Answer:

You need totally 100% of protein daily. A protein bar has 33% => You need 67% from other sources
=> 12 grams equal 67%
Call the total gram we need daily “x”
=> x . 67% = 12 (or x . 67/100 = 12)
x = 12 . 100/67
x = 17,91 (grams)
So we need 17,91 grams daily, which 12 grams is from other sources, and the grams from the protein bar is
17,91 - 12 = 5,91 (grams)