Final answer:
Brett reads 4 3/4 chapters per week, and needs to read 9 1/2 chapters. By converting mixed numbers to improper fractions and dividing, it's determined that it will take exactly 2 weeks for Brett to read 9 1/2 chapters.
Step-by-step explanation:
To calculate how many weeks it will take Brett to read 9 1/2 chapters when he is able to read 4 3/4 chapters each week, we can perform a simple division. First, convert mixed numbers to improper fractions. Brett reads 4 3/4 chapters per week, which is the same as 19/4 chapters. He needs to read 9 1/2 chapters, equivalent to 19/2 chapters. We then divide the total chapters by the number of chapters he can read per week to determine the number of weeks.
19/2 ÷ 19/4 = 19/2 × 4/19 = 2 weeks. Therefore, it will take Brett exactly 2 weeks to read 9 1/2 chapters.
Students who annotate as they go tend to retain information better, which could be beneficial for Brett in completing his readings efficiently.