Question 1029896
Tim's piggy bank contains quarters and nickels worth ​$6.10 He has 50 coins in all. Which system of equations models this​ problem? How many of each coin does Tim ​have? 
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Quantity Eq:: n + q = 50 coins
Value Eq::  5n + 25q = 610 cents
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Modify for elimination::
n + q = 50
n + 5q = 124
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4q = 74
q = 18 1/2 (note:  This is not an acceptable answer for "# of quarters)
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Cheers,
Stan H.
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