To determine how many hours Shantel must work each month to earn a monthly profit of at least $600.00, we will first calculate her required monthly earnings and then the number of hours she needs to work.
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Calculate total required earnings:
Shantel wants to achieve a profit of at least $600.00, and her monthly expenses are $3,200.00. Thus, her total required earnings can be calculated as:
\[ \text{Total earnings} = \text{Monthly expenses} + \text{Desired profit} \] \[ \text{Total earnings} = 3200 + 600 = 3800 \]
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Calculate the number of hours needed to earn this amount:
Since Shantel charges $25.00 per hour per student, we can find the number of hours she needs to work by dividing her total required earnings by her hourly rate:
\[ \text{Hours needed} = \frac{\text{Total earnings}}{\text{Hourly rate}} \] \[ \text{Hours needed} = \frac{3800}{25} = 152 \]
Therefore, Shantel must work at least 152 hours each month to earn a monthly profit of at least $600.00.