ANSWERS: 2
-
3x + 2y = 9 3x = 9 - 2y x = 3 - (2/3)y x = -(2/3)y + 3
-
The second fact about orange juice and milk tells us no more than the first as it is just a multiple: the second person just bought three times as much stuff as the first. So we really know is 3 orange juice + 2 milk = $9 and: orange juice costs between $0 and $3 milk costs between $4.50 and $0 one orange juice costs $3 minus two thirds of the price of milk!
Copyright 2023, Wired Ivy, LLC

by 