Question

купили 6 тетрадей и несколько ручек, заплатив за все 11 манатов 80 гяпик. Сколько ручек было куплено, если одна тетрадь стоит 1 манат 30 гяпик, а одна ручка 25 гяпик?

Answer 1

Your message is in Azerbaijani, and it means: "Answer in detail. Bought 6 notebooks and several pens, paying 11 manats 80 gapiks for everything. How many pens were bought, if one notebook costs 1 manat 30 gapiks, and one pen 25 gapiks?"

To solve this problem, we can use a system of two equations with two unknowns. Let x be the number of pens and y be the number of notebooks. Then we have:

y = 6 (given) 25x + 130y = 1180 (the total cost in gapiks)

Substituting y = 6 into the second equation, we get:

25x + 780 = 1180 25x = 400 x = 16

Therefore, 16 pens were bought.

You can also use online tools to solve math problems step by step, such as [Symbolab](https://www.symbolab.com/solver) or [Quickmath](https://quickmath.com/). They can show you the solution, graph, detailed steps and explanations for each problem.