Answer:
(a) 17 words per minute
(b) 27 words per minute
(c) 77 words per minute
Explanation:
N = 95/1+8.5e^-0.12t
(a) t = 5 weeks
N = 95/1+8.5e^(-0.12×5) = 95/1+8.5e^-0.6 = 95/1+8.5(0.55) = 95/1+4.675 = 95/5.675 = 17 words per minute
(b) t = 10 weeks
N = 95/1+8.5e^(-0.12×10) = 95/1+8.5e^-1.2 = 95/1+8.5(0.3) = 95/1+2.55 = 95/3.55 = 27 words per minute
(c) t = 30 weeks
N = 95/1+8.5e^(-0.12×30) = 95/1+8.5e^-3.6 = 95/1+8.5(0.027) = 95/1+0.2295 = 95/1.2295 = 77 words per minute