Question

Karey is prescribed 600 mg of a medication that decays at a rate of 40% per day, d, according to the equation

Answer 1

Answer : 7.8%

Karey is prescribed 600 mg of a medication that decays at a rate of 40% per day, d, according to the equation

$m=600(0.6)^d$

Noelle takes same amount before 5 days.

Amount of medication remain in Nelle's body is

$m=600(0.6)^5 = 46.656$

Karey is prescribed 600 mg of a medication

We need to find out what percentage of 46.656 in 600

$\frac{46.656}{600} =0.07776$

Now multiply it by 100 to get percentage

0.07776 * 100 = 7.8%