To find the correct units for the rate at which a student reads a book, we need to identify the combinations of "pages" and "time" (such as minutes, seconds, or hours) that would give us a rate of reading.

• 660 pages: This is just the number of pages, not a rate. Not a valid rate.

• 0.721 minutes: This is just a measure of time, not a rate (no pages involved). Not a valid rate.

• 0.0325 hours/page: This expresses time taken per page, which is a valid rate. Correct.

• 0.00856 pages per second: This is a rate that expresses how many pages are read per second. Correct.

• 0.5 pages per minute: This expresses how many pages are read per minute, which is a valid rate. Correct.

Correct answers:

• 0.0325 hours/page
• 0.00856 pages per second
• 0.5 pages per minute

Would you like further explanation or details on any of these answers?

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5 Related Questions:

1. How would you convert pages per second to pages per minute?
2. What would be the reading rate in pages per minute if the rate is 0.0325 hours/page?
3. How long would it take to read 660 pages at a rate of 0.5 pages per minute?
4. What is a faster reading rate: 0.5 pages per minute or 0.00856 pages per second?
5. Can you convert 0.0325 hours per page to seconds per page?

Tip:

Always double-check the relationship between units when calculating or interpreting rates, especially with different time or distance measurements.