<span>The decay of 277 mg of an isotope is described by the function
A(t)= 277e-0.019t,
where t is time in years.
To find the amount left after 64 years,
We substitute t = 64 in the expression.
</span>A(t=64)= 277e-0.019(64)
or A(t=64) = 277 * e-1.216
= 277 * 0.29
= 82 mg
Does this have a total amount to it?
Answer:
18.6
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
9/v=27/45 Cross multiply
405=27v Divide by 27 on both sides
15=v
