Question 156639
A sum of money is made up of $5 bills and $10 bills.
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The total number of $5 bills is at least 3 less than double the number of $10 bills.
Quantity Inequality: F >= 2T -3
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That sum of money is a minimum of $65.
Value Inequality: 5F + 10T >= 65 
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That is what the inequalities look like.
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Cheers,
Stan H.