Question

Щоб преміювати 12 учнів, вирішили купити фарби і олівці. Кожному необхідно вручити або фарби, або олівці. Набір фарб коштує 8 грн, а олівці – 5 грн. Яку найбільшу кількість наборів фарб можна купити, щоб вартість покупки не перевищувала 80 грн.?

Answer 1

Ответ:

10 наборів фарб можна купити за 80 грн

Объяснение:

8×10=80

Answer 2

Problem Analysis

To solve this problem, we need to find the maximum number of paint sets that can be purchased without exceeding a total cost of 80 gryvnias. Each paint set costs 8 gryvnias, and we have the option to buy either paint sets or pencils. Pencils cost 5 gryvnias each. We want to maximize the number of paint sets while staying within the budget.

Solution

Let's assume we buy 'x' paint sets. The cost of 'x' paint sets would be 8 * x gryvnias. To stay within the budget, we need to ensure that the cost of the paint sets does not exceed 80 gryvnias. So, we can write the following inequality:

8 * x <= 80

Now, let's solve this inequality to find the maximum value of 'x'.

Dividing both sides of the inequality by 8, we get:

x <= 10

Therefore, the maximum number of paint sets that can be purchased without exceeding a total cost of 80 gryvnias is 10.

Conclusion

To ensure that the cost of the purchase does not exceed 80 gryvnias, you can buy a maximum of 10 paint sets.