Sofia takes 10mg of a medicine whose concentration in blood decreases by a factor of one half every day. let t be the number of days since sofia took the medication. the amount of medication in her system after t days is s = 10(½)t. four days later, lexi takes 10mg of the same medicine. how much medication, l, is in lexi’s system on day t?

 Medication in Lexi's system on day t becomes,

Step-by-step explanation:

Since we have given that

Initial amount Sofia takes of a medicine = 10 mg

Concentration in blood decreases by a factor of one half every day.

So, it becomes,

According to question, four days later, it becomes,

We have given that Lexi takes 10 mg of the same medicine.

So, it becomes,

Hence, Medication in Lexi's system on day t becomes,

The correct answer is C.

L = 10 (1/2)^t-4

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step-by-step explanation: