Question 1020802
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Hi 
Harry has 15 coins in nickels and dimes if the total is 1.20 
how much of each coin does he have ?
Let x represent the number of Dimes and (15-x) the number of Nickels
10x + 5(15-x) = 120  CENTS makes sense!
5x = 120-75 
 x =  45/5 = 9
x = 9  and y = 6 {{{15-9}}}  
  CHECKING our answer***
90 + 30 = 120  Checks! 
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