What is the age of a sample if there are 6 grams of an element that have not decayed outof an original 24 grams and has a half-life of 8yrs a. 8yrs b. 50yrs c. 29yrs d. 16yrs

d ) 16 years

Explanation:

If n be number of half years passed then

" alt="\frac{m}{m_0} =\sqrt[n]{\frac{1}{2} }" />" />

m is mass undecayed m₀ is original mass

Here m = 6 g

m₀ =24 g

Putting these values

n = 2 half lives

age = 2 x 8 = 16 years

= 16 years

i don't understand. explain it clearly

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles