Question

Help please quick I don’t understand this stuff

Answer 1

Hello,

(i) Express n as the subject.

`C=(nA)/(n+12)`

`C(n+12) = nA\\nC + 12C = nA\\(nC+12C)/(n)=(nA)/(n) \\(nC)/(n)+(12C)/(n) = A \\(12C)/(n) =A-C\\(n)/(12C)=(1)/(A-C) \\n = (12C)/(A-C)`

(ii)

Since C = 6 mL and n = 8 we need to solve this equation of unknown A :

`6 = (8A)/(8+12) \\6 = (8A)/(20)\\8A = 20*6\\A = (5*4*2*3)/(4*2)\\A = 15`

Thus, the equivalent adult dosage A would be 15 mL

(iii) I let you think about this one

Good Luck