Предмет: Математика, автор: 041977

Задача.Белка с бельчонком запасли на зиму 350 грибов. Бельчонок собрал 75% числа грибов, собранных белкой. Сколько грибов собрала белка и сколько бельчонок?

Ответы

Автор ответа: Ирина Александрова

пусть х-колво грибов,собранных белкой

тогда 0.75х- колво грибов,собранных бельчонком

основание:вместе собрали 350 грибов

составим ур-е:

х+0.75х=350

1.75х=350

х=200-собрала белка

1)200*0.75=150-собрал бельчонок

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: oksananelubina15

Many of the different things people do to learn about something may be called experiments. An experiment is a procedure used to make a discovery, test something, or demonstrate a fact. Experiments are often used by (1)tscitsnsei __________ to learn new things.
   An example of making a (2)cisvyeodr ________ occurred when explorers long ago traveled across the ocean to America, they were making a discovery. They did not (3)nwko _________ what they would find in the New World. Scientists discover new medicines to treat diseases. Discovering things is experimenting.
   To test something a cook might test recipes by adding (4)fedntrfie _________ amounts of ingredients. The cook is experimenting. A scientist may help a car company build safer cars when testing the strength of seatbelts. Testing things is called experimenting.
   Finally, everyone knows if you drop something it will fall to the ground or floor. This is called gravity. Scientists may drop different things to demonstrate gravity, proving that the fact is true. Demonstrating a scientific fact is experimenting.
    Experiments are used by many kinds of scientists. In class, students might do experiments too. Often, they are done in science class, but in art class, they might mix different colors of paint to create a new color. It is experimenting when the colors are mixed, and a (5)nerspo ________ learns something new about colors.
    The steps of doing science experiments are part of the scientific method, which are the rules for doing experiments.
    Finally, once the experiment has been conducted and completed, it is important to analyze the results. Analyze the recorded and observed (6)nmoiaiortnf ________, reflect and think about the completed experiment. Once the results are analyzed, all scientists draw a conclusion. What is learned by the results of the experiment? This can also include a discussion with other scientists as well.
    Often, it may be necessary to repeat the experiment. If the first or original experiment was done correctly, the results should be the same. All experiments will follow the basic scientific method steps.
    The best experiments will often lead to more questions about the things you will want to learn, more experiments, and usually more research. Real scientists follow steps for their experiments, and when they conduct one experiment, it may lead to several other experiments with . оооооочень срочно

6 лет назад

Предмет: История, автор: jenshenart7

ниже приведен список городов. укажите те из них которые существовали на Руси на рубеже 9 и 10 века.
1. Нижний Новгород
2. Смоленск
3. Изборск
4. Ладога
5. Переславль-Залесский
6. Москва

6 лет назад

Предмет: Химия, автор: Аноним

помогите пожалуйста химию очень надо

6 лет назад

Предмет: Математика, автор: степан

У Сережи в коллекции в 3 раза меньше марок, чем у Васи, а у Андрея- в 2 раза больше, чем у Васи. Сколько марок у каждого, если у Андрея на 80 марок больше, чем у Сережи?

10 лет назад

Предмет: Математика, автор: tapalig

Первая бригада прополола 30% всей площади ,занятой свёклой, вторая бригада прополола 80% того ,что прополола первая бригада.Остальную площадь прополола третья бригада.Сколько процентов всей площади прополола третья бригада?

10 лет назад