500
Set up a system and solve.
At an ice cream parlor ice cream cones cost $1.10 and sundaes cost $2.35. One day the receipts for a total of 172 cones and sundaes were $294.20. How many cones were sold?
What is x + y = 172
1.10x + 2.35y = 294.20
1.10(172 - y) + 2.35y = 294.20
189.2 - 1.10y + 2.35y = 294.20
189.2 + 1.25 y = 294.20
y = 84 x = 88