Naysa150724

22.10.2019 • 

Mathematics

133. a patient in a hospital needs to maintain a certain amount of a medication in her bloodstream to fight an infection. suppose the initial dosage is 10 mg, and the patient is given an additional maintenance dose of 4 mg every hour. assume that the amount of medication in the bloodstream is reduced by 25% every hour.
c. use a calculator to graph the function you wrote in part (c). according to the graph, will there ever be more than 16 mg of the medication present in the patient’s bloodstream after each dose is administered?

Ответ:

anikalee

22.02.2021

Mathematics

---

Answer

given,

borrowed money = $33000

Part of the money was borrowed at 8% be x, part at 10% be  y, and  part at 12% be ($33000-x-y)

x + y = 2 ($33000-x-y)

3 x + 3 y = $ 66000

x + y = $ 22000(1)

third part =$33000-($22000)

                = $ 11000

now annual interest is

0.08 x + 0.1 y +  0.12 × 11000 = $ 3360

0.08 x + 0.1 y = 2040(2)

0.1 x + 0.1 y = 2200(3)

solving equation (3) and (2)

x = $ 8000

y = $ 14000

3 rd number = $ 11000

---

0,0(0 оценок)