Helena had a balance of $14.48 left on a gift card. She bought a muffin each for her, and five of her friends. The cost of each
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Answer:
25.48 days
Step-by-step explanation:
For a radioactive substance, the Amount of the substance remaining A(t) is modeled by the equation
where
In the given problem:
Half Life of the Radioactive Isotope = 8
Initial Amount, =100%=1
A(t)=11% =0.11
Therefore substituting in the model above:
The farmer need to wait for 25.48 days