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NNADVOKAT [17]
4 years ago
8

C. what assumptions are you making in solving parts​ (a) and​ (b)? select all that apply.

Mathematics
1 answer:
Alexxx [7]4 years ago
6 0
D hope this helps with it 
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Sophia has an ear infection. The doctor prescribes a course of antibiotics. Sophia is told to take 500 mg doses of the antibioti
olganol [36]

Answer:

Dosage= 500 mg

Frequency= twice a day (every 12 hours)

Duration= 10 days

Number of dosage= 10*2= 20

residual drug amount after each dosage= 4.5%

We can build an equation to calculate residual drug amount:

  • d= 500*(4.5/100)*t= 22.5t, where d- is residual drug, t is number of dosage
  • After first dose residual drug amount is: d= 500*0.045= 22.5 mg
  • After second dose: d= 22.5*2= 45 mg

As per the equation, the higher the t, the greater the residual drug amount in the body.

Maximum drug will be in the body:

  • d= 20*22.5= 450 mg at the end of 10 days

Maximum drug will be in the body right after the last dose, when the amount will be:

  • 500+19*22.5= 927.5 mg
6 0
4 years ago
Solve for x in the literal equation −11 = xy + z.
Alisiya [41]

Answer:

x= -11/y-z/y

Step-by-step explanation:

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5 0
3 years ago
Two items cost $72.49 and $36.24. How much would you pay if there is a discount of 25% on both items?
k0ka [10]

Answer:

$81.5475 or to round it $81.55

Step-by-step explanation:

Simple steps:

1) Add the 2 items

2) Multiply by 0.75. because 25% discount = 75% of item

($72.49+$36.24)x0.75 = $81.5475 or $81.55

5 0
3 years ago
The annual rainfall for kaysron falls was 50.38 inches in 2012. In 2013, the annual rainfall was 55.76 inches. What is the diffe
Aneli [31]
Its saying the difference between the two years of rainfall. Difference meaning subtract the two, 50.38 inches and 55.76 inches. It gives 5.38 inches. If you have answer choices then i would go with that but i tried my best to figure it out.
3 0
4 years ago
Read 2 more answers
A pharmaceutical company interviews 12 people for eight openings in the research department of the company. 7 of the 12 people a
viva [34]

Answer:

(a) 495, (b) 210

Step-by-step explanation:

Total number of persons = 12

number of openings = 8

number of women = 7

number of men = 12 - 7 = 5

(a) Number of ways to select the 8 persons

C_{8}^{12}\textrm{}\\\\= \frac{12!}{8!\times 4!}\\\\=495

(b) Three are men

So, 3 men and 5 women

The number of ways are

C_{3}^{5}\textrm{} \times C_{5}^{7}\textrm{}\\\\= \frac{5!}{3!\times 2!}\times \frac{7!}{5!\times 2!}\\\\=210

7 0
3 years ago
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