Question 1106878
 A garden supply store sells two types of lawn mowers. The smaller mower costs $249.99 and the larger mower costs $329.99. If 30 total mowers were sold and the total sales for a given year was $8379.70, find how many of each type were sold. 
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Quantity Eq:: S + L = 30 mowers
Value EQ:: 249.99S + 329.99L = 8379.70
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Modify for elimination::
249.99S + 249.99L = 249.99*30
249.99S + 329.99L = 8379.70
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Subtract and solve for "L":
80L = 880
L = 11 (# of large sold)
S = 30-L = 19 (# of small sold)
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Cheers,
Stan H.
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