If Amanda earns $5 every 30 minutes, we can calculate her earnings for eight hours.
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First, convert hours to minutes:
\( 8 \text{ hours} = 8 \times 60 \text{ minutes} = 480 \text{ minutes} \) -
Next, determine how many 30-minute intervals are in 480 minutes:
\( \frac{480 \text{ minutes}}{30 \text{ minutes per interval}} = 16 \text{ intervals} \) -
Now, calculate her earnings for 16 intervals:
\( 16 \text{ intervals} \times 5 \text{ dollars per interval} = 80 \text{ dollars} \)
Therefore, if Amanda babysits for eight hours, she will make $80.