Answer:
this is a negative slope
Step-by-step explanation:
hope this helps!
Answer:
48%
Step-by-step explanation:
100/25= 4
so
12×4/ 25×4 = 48/ 100 = 0.48
0.48 ×100 = 48%
There will be a 25 grams left after 3240 years.
The half-life of Radium-226 is 1620 years. If we divide 3240 by 1620 the answer is 2. So that means the amount of Radium-226 will divide in half twice.
100 / 2 = 50 / 2 = 25
