Question 1195803
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Larry plans to make at least 10 pounds of a snack mix that will consist 
of almonds and dried fruit. 
If the wants the snack mix to be at least 60% almonds by weight, 
which system of inequalities represents the constraints on the number 
of pounds of almonds, a, and the number of pounds of dried fruit, f?
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<pre>
The system of inequalities is

    a + f >= 10,

    a >= 0.6(a+f)     

    a >= 0, f >= 0


or any other EQUIVALENT to it.  For example

    a + f >= 10

    a - 0.6a >= 0.6f,

    a >= 0, f >= 0


which is the same as

    a + f >= 10,

    0.4a >= 0.6f,

    a >= 0, f >= 0


and is the same as

    a + f >= 10,

    a >= 1.5f,

    a >= 0, f >= 0.
</pre>

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Ignore the post by @josgarithmetic, since he INCORRECTLY interprets and treats the given conditions.