Answer:
2/3x+2
Step-by-step explanation:
2x−3y+−2x=−6+−2x
−3y=−2x−6
Answer:
After 80 years 432 pounds of radioactive element will be remaining.
Step-by-step explanation:
A function models the amount of a radioactive material.
Here x = number of years taken for decay.
If pound and pound, then we have to calculate the time for decay.
Take log on both the sides of the equation
-0.0077x = ln(0.54)
-0.0077x = -0.616186
x =
x = 80.02 years
Therefore, After 80 years 432 pounds of radioactive element will be remaining.