Предмет:
МатематикаАвтор:
анонимПусть альбом стоит х рублей, тогда книга стоит 3х рублей. По условию задачи известно, что альбом дешевле книги на (3х - х) рублей или на 66 рублей. Составим уравнение и решим его.
3х - х = 66;
2х = 66;
х = 66 : 2;
х = 33 (руб) - стоимость альбома;
3х = 33 * 3 = 99 (руб) - стоимость книги.
Ответ. 99 рублей.
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Skim read the text. Find the answers to the following questions.
What role do hobbies play in teens' lives? What activities are teens interested in? How do hobbies divide teens into groups? What groups do teens
form?
• What are girls' hobbies? What are boys' hobbies?
текст
Hobbies play a great part in teen's life. No wonder, hobbies are good for self-improvement and self-expression. Hobbies keep teens socially engaged with people who have similar interests. Hobbies help them build confidence, stay busy or keep out oftrouble.
What do teens like doing in their leisure time? Firstly, teens can pursue music as a hobby. Secondly, teens enjoy outdoor activities that range from skiing and snowboarding in winter to sailing and skateboarding in summer. Teens can also choose to participate in team sports such as soccer, baseball, basketball and hockey.
Some teens express themselves through creative art. They spend time drawing, painting or sculpting. Other examples ofteens' creative pastimes are jewelry-making, car modeling, scrapbooking, cooking and baking, For those teens with a dramatic flair, there are often opportunities to act, sing or dance in theater productions.
Nowadays, the Internet provides a world of opportunities for teens. Teens can create and maintain a blog on a topic that interests them. They can play video games, use social networking sites, and even build robots and write programs to make them run. They are busy with texting and watching TV.
Sociai teens prefer to spend time with their friends at social events, to
hang out, or to talk on the phone.
Some teens love to work, to earn, to spend, to save money, and to learn how to manage it while instilling a solid work ethic for future jobs.
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