The half-life of a certain radioactive substance is 6 hours. In other words, if you start with 8 grams of the substance, 6 hours later you will have 4 grams. If a sample of this substance contains x grams, how many grams remain after 2 hours?
Refer to the attached video.
1297 MCQ for effective preparation of the test of Exponents of Word Problems section.
Read the MCQ statement: The half-life of a certain radioactive substance is 6 hours. In other words, if you start with 8 grams of the substance, 6 hours later you will have 4 .... 2 hours? , keenly and apply the method you have learn through the video lessons for Exponents to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 19-12786.