Answer: b+3/b+c = 1/2
Explanation:
"b + c = 17" represents the total cases sold last month.
"b is $90 per case" implies that the cost of each case of ice cream is $90.
"c is $20 per case" implies that the cost of each case of something else (not ice cream) is $20.
Now, let's write an equation for the statement: "Had 3 more cases of ice cream been sold, ice cream would have represented 1/2 of the total cases sold last month."
First, let's consider the number of ice cream cases sold. If we had sold 3 more cases of ice cream, it would be (b + 3) cases of ice cream.
Next, we need to consider the total number of cases sold, including ice cream and something else. From the given information, this is (b + c).
The statement also says that "ice cream would have represented 1/2 of the total cases sold last month." This means the number of ice cream cases sold would be half of the total cases sold. Mathematically, we can express this as:
b+3/b+c = 1/2