Five divided by sixty is twelve, and twelve times two is twenty-four. So your answer will be twenty-four (24).
The answer is c because you need to multiply both numbers inside the parentheses by the number on the outside
Answer:
The half-life of the radioactive substance is 135.9 hours.
Step-by-step explanation:
The rate of decay is proportional to the amount of the substance present at time t
This means that the amount of the substance can be modeled by the following differential equation:

Which has the following solution:

In which Q(t) is the amount after t hours, Q(0) is the initial amount and r is the decay rate.
After 6 hours the mass had decreased by 3%.
This means that
. We use this to find r.







So

Determine the half-life of the radioactive substance.
This is t for which Q(t) = 0.5Q(0). So







The half-life of the radioactive substance is 135.9 hours.
5 x 6 = 30
9 x 6 = 54
54 + 30 = 84
you would be intaking 84 grams of fat