Register
srontium-90 has a half life of 29 years. What percentage of the original parent material remains after 87 years
234k views
2 votes
srontium-90 has a half life of 29 years. What percentage of the original parent material remains after 87 years

User Adrian Avendano
by
7.6k points

1 Answer

2 votes
12.5%

87/27 is 3, so we have to cut the percentage in half three times.

100/2 is 50, 50/2 is 25, and 25/2 is 12.5.
User Ross Presser
by
7.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.3m questions

10.9m answers

Other Questions

What are three important types of forces
Two methods of active transport
What is the phenotype of a heterozygous person using T for tall and t for short
Vesicles that contain a cells digestive enzymes are called ?
in rabbits, black fur is dominant over white fur. Show the cross of a heterozygous black male with a homozygous white female.
Link Copied!