the half - life of a particular radioactive substance is 1 year. if you started with 40 grams of this…
the half - life of a particular radioactive substance is 1 year. if you started with 40 grams of this substance, how much of it would remain after 3 years? remaining amount = 40(1 - 0.50)^3 remaining amount =? grams round your answer to the nearest whole number
Answer
Explanation:
Step1: Calculate the value inside the parentheses
$1 - 0.50=0.5$
Step2: Calculate the exponentiation
$0.5^3 = 0.5\times0.5\times0.5= 0.125$
Step3: Multiply by the initial amount
$40\times0.125 = 5$
Answer:
$5$