Question 364485
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Hi, 
Let x represent the number of dimes.  
question statets the total coins then is (2x + 1) 
The number of nickels is total coins - the number of dimes = [(2x+1) - x ]
Note: there are 5 cents in a nickel and 10 cents in a dime.
5[(2x+1) - x ] + 10x = 95 cents
simplify and slove for x
5[x + 1] + 10x = 95
5x + 5 + 10x = 95
15x = 90
x = 6, the number of dimes
number of nickles is [(2*6 + 1) - 6] = 7 nickels

checking our answer
5*7 + 6*10 = 35 cents + 60 cents = 95 cents