Question 1054693
n = d+10 we'll use this value for n next
0.05n+0.10d = 2.15
substitute for n
0.05(d+10)+0.10d = 2.15
0.05d+0.50+0.10 = 2.15
0.15d = 1.65
d = 1.65/0.15 this is how many dimes Carson has (use your calculator). Then
add 10 to the result, that's how many nickels he has.