chemistry question

Question

A jar of crunchy peanut butter contains 1.66 kgkg of peanut butter. If you use 7.8 %% of the peanut butter for a sandwich, how many ounces of peanut butter did you take out of the container?

Answer 1

jar of crunchy peanut butter has 1.66 kg

use 7.8 % of the peanut butter

that's .078 times 1.66 = .12948 kg used up

convert kg to ounces

= 4.56727752 ounces

= about 4.6 ounces of peanut butter used up