madvicj2006 madvicj2006
  • 01-12-2020
  • Mathematics
contestada

PLEASE HELP!!! The half life of carbon-11 is 20 minutes. A sample of carbon-11 has
25mCi. How much is left after 1 hour?*
A)12.5mci
B)10.2mCi
C)2.25mci
D)3.125mci

Respuesta :

christianaass666
christianaass666 christianaass666
  • 01-12-2020

Answer:

3.125 (D)

Step-by-step explanation:

1 is 1/2

25-1 4

20x3 = 60mins

3.125 would be took away results end with what you have took for this equation

Answer Link

Otras preguntas

the vertical sequence of the layers of soil is called a soil what
find the pair of numberswhose sum is 40 and whose product is a maximum.
Una de las cosas que nos gustaba más era _____ a la cuerda. A. saltábamos B. saltaría C. saltamos D. saltar
What's figurative language
Which layer of the atmosphere would you be in if you were caught in a rain storm?
What's figurative language
Malloy solved the equation −5x − 16 = 8; his work is shown below. Identify the error and where it was made. −5x − 16 = 8 Step 1: −5x − 16 + 16 = 8
____are two or more types of tissue that work together to perform a specific function.
when was the united states of america founded?
A research study that proposed to describe the behaviors of high school teachers would be __________. a. experimental b. representative c. propositional d.