Use the table to answer the question.
Time (hours) Pages read
12 15
1 30
112 45
2 60
Ruth can read 15 pages in 30 minutes. She decides to create a table to keep track of her progress. From the data provided, at what ratio is the constant of proportionality?
(1 point)
Responses
(1 1/2, 30)
left parenthesis 1 Start Fraction 1 over 2 End Fraction comma 30 right parenthesis
(2, 60)
left parenthesis 2 comma 60 right parenthesis
(1, 30)
left parenthesis 1 comma 30 right parenthesis
(15, 1/2)
left parenthesis 15 comma Start Fraction 1 over 2 End Fraction right parenthesis
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1 answer
To find the ratio, we need to compare the number of pages read to the corresponding time it took to read them. Looking at the table, it is clear that for every 30 minutes (1/2 hour) Ruth reads 15 pages. This means the ratio of pages read to time is 15:1/2 or 30:1. Therefore, the correct answer is (30, 1/2).