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Signs of divisibility by 15: how to find, examples and problems with solutions
Signs of divisibility by 15: how to find, examples and problems with solutions

Often, when solving problems, you need to find out if a given number is divisible by a given digit without a remainder. But dividing it every time is a long time, besides, there is a high probability of making a mistake in the calculations and getting away from the correct answer. What if you need to divide by another, larger number, for example, how to calculate the sign of divisibility by 15? We will try to find the answer to this question in this article

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Decembrists - who are they and what did they fight for? Decembrist uprising of 1825: causes and consequences
Decembrists - who are they and what did they fight for? Decembrist uprising of 1825: causes and consequences

The Decembrist uprising of 1825 was an attempted coup. It was undertaken in St. Petersburg, at that time the capital of the Russian Empire. More details about who they are - the Decembrists and the events on Senate Square will be discussed below

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  • IELTS scores: what they mean, how to learn and how to use
    IELTS scores: what they mean, how to learn and how to use

    IELTS (International English Language Testing System) is an international exam to confirm the level of English. A well-passed exam opens the door to education, work, or immigration abroad. Suppose the years of preparation are over, the long-awaited day has come, the exam has been passed. How to find out the results of IELTS and what to do next? You will find answers to these questions in the article

  • What is the global community? Problems of international relations
    What is the global community? Problems of international relations

    What is the global community? The main global problems of international relations and ways to solve them

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Interaction of acids with metals. The interaction of sulfuric acid with metals
Interaction of acids with metals. The interaction of sulfuric acid with metals

The chemical reaction of an acid with a metal is specific to these classes of compounds. In its course, the hydrogen proton is restored and, in conjunction with the acid anion, is replaced by a metal cation

  • What is a literary text

    Do you know what a literary text is and what is its main difference from the texts of other functional styles?

  • Reading diagonally: features and recommendations

    Reading diagonally is an accelerated technique for processing information. This article talks about common mistakes that prevent you from reading faster, and also provides exercises to develop the skill of speed reading

  • Old English: History, Grammar and Concise Dictionary

    Modern English is significantly different from its original form - Old English, or Anglo-Saxon. A vivid example of this is the ancient monuments of literature. They are unlikely to be understood by a person far from the study of ancient literature

  • English numbers: singular and plural

    In our article we will talk about English numbers that any user who learns this language faces. It will be a conversation not only about numbers. This will be an attempt to explain the rules for the formation of the plural in English in an accessible way. The fact is that these rules are significantly different from what we are used to encounter in Russian. Many begin to get confused and incorrectly use some words. To prevent this from happening, you need to carefully study the topic