Suppose that Irina is prepared to pay a maximum of $2.40 for her first glass of cranberry juice,but for each subsequent glass she is only prepared to pay 20 cents less than the previous one.
-Refer to the above information to answer this question.If the price of cranberry juice is 80 cents per glass,how many glasses will she purchase?

Question

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Irina is willing to pay a maximum of $2.40 for her first glass of cranberry juice. Since the cost of one glass is $0.80, she can purchase three glasses for $2.40.

For each subsequent glass, she is only prepared to pay 20 cents less than the previous one. This means she will pay $2.20 for the fourth glass, $2.00 for the fifth glass, and so on.

To determine how many glasses she will purchase, we can create a table:

| Glass | Price |
|-------|-------|
| 1     | $2.40 |
| 2     | $2.20 |
| 3     | $2.00 |
| 4     | $1.80 |
| 5     | $1.60 |
| 6     | $1.40 |
| 7     | $1.20 |
| 8     | $1.00 |
| 9     | $0.80 |

We can see from the table that Irina will purchase a total of 9 glasses of cranberry juice: 3 for $2.40, 3 for $2.00, and 3 for $0.80. Therefore, the answer is C) 9 glasses.

Suppose That Irina Is Prepared to Pay a Maximum of $2.40