Thursday
December 18, 2014

Homework Help: Math

Posted by Darwin12 on Friday, December 14, 2012 at 2:34pm.

In 10 years, 25% of a radioactive substance decays. What is its half-life?

A. 25 years
B. 24 years
C. 20 years
D. 29 years

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Algebra - In 10 years, 25% of a radioactive substance decays. What is its half-...
Calculus - The half life of a certain radioactive substance is 10 years. How ...
calculus - The rate at which an amount of a radioactive substance decays is ...
precal - If the half-life of a certain radioactive substance is 2000 years, ...
Science - A material has 32 atoms in all; 24 decayed and the rest undecayed. If ...
Math - 1. If one wishes to accumulate a 30,000-fund in 5 years, how much should ...
Science - If a 20 gram sample of a radioactive substance has a half-life of 6000...
Physics - Suppose you have 100 g of radioactive plutonium-239 with a half-life ...
Physics - Suppose you have 100 g of radioactive plutonium-239 with a half-life ...
Math - 1. If one wishes to accumulate a Php 30,000-fund in 5 years, how much ...

Search
Members