Answer
18 double dip and 42 single dip cones.
Work Step by Step
We first write the word problem as an equation. Next, we solve the equation using substitution. Doing this, we find:
$$ x+y=60 , 2.5x+4.15y=179.7 \\ \frac{5}{2}\left(60-y\right)+\frac{83}{20}y=\frac{1797}{10} \\ y=18 \\ x=60-18 \\ x=42$$