Michael J. answered 04/27/15
Tutor
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Applying SImple Math to Everyday Life Activities
Let write a proportion that describes this relationship.
r ∝ 1 / t
We can establish an equation using this proportion:
r = K / t
where K is a constant.
Solve for K using the initial values.
K = rt
K = 50 words/min * 80 min
K = 4000 words
Now, solve for t using the value of K when the rate, r, is 40 words/min.
t = K / r
t = (4000 words) / (40 words/min)
t = 160,000 min