To determine how many minutes it will take Carla to read the full assignment of 20 pages, we first find out how many sets of 4 pages she has to read.
She needs to read 20 pages, and since she reads 4 pages in 10 minutes, we can calculate the total reading time as follows:
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Determine how many sets of 4 pages are in 20 pages: \[ \text{Number of sets} = \frac{20 \text{ pages}}{4 \text{ pages/set}} = 5 \text{ sets} \]
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Calculate the total time for reading 20 pages: Since each set takes 10 minutes: \[ \text{Total time} = 5 \text{ sets} \times 10 \text{ minutes/set} = 50 \text{ minutes} \]
So, it will take Carla 50 minutes to read the full assignment.