Question
Sam can type 368 words in 8 minutes. What is the constant of proportionality that relates the number of words typed, y , to the number of minutes it took to type, x ? (Remember that constant of proportionality is k = yx
A. 50 words per minute
B. 46 words per minute
C. 44 words per minute
D. 36 words per minute
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To find the constant of proportionality, we divide the number of words typed by the number of minutes it took to type them:
k = y/x
In this case, y = 368 words and x = 8 minutes.
k = 368/8
k = 46
Therefore, the constant of proportionality is 46 words per minute.
Therefore, the correct answer is B. 46 words per minute.