Problema Solution
A vending machine sells chips at $0.40 and candy at $0.50. Last month, the vending machine yielded $152.80 with the sale of 328 items. How many packages of chips were purchased last month?
Answer provided by our tutors
x = number of chips sold
y = number of candy sold
x+y=328
40x+50y=15280
Solve simultaneously:
10x = 328*50-15280 = 1120
112 packages of chips were sold