Хорошо, давайте рассмотрим экзаменационную задачу из учебника Exam Zone 1 (units 1-3) по предмету математика. Для выполнения этой задачи нам понадобятся знания и навыки, полученные в первых трёх главах учебника.
Вопрос: Найдите среднее арифметическое (среднее значение) чисел 12, 15, 24 и 28.
Решение:
1. Сначала мы должны сложить все числа вместе: 12 + 15 + 24 + 28 = 79.
2. Затем мы делим полученную сумму на количество чисел, которые мы сложили. В данном случае количество чисел равно 4 (12, 15, 24, 28), поэтому мы делим 79 на 4.
79 / 4 = 19.75.
Ответ: Среднее арифметическое чисел 12, 15, 24 и 28 равно 19.75.
Обоснование:
Среднее арифметическое - это сумма всех значений, деленная на количество этих значений. В данной задаче мы нашли сумму чисел и разделили её на 4, так как в задаче приведены четыре числа, для которых мы ищем среднее арифметическое. Полученный результат 19.75 является средним значением чисел 12, 15, 24 и 28.
Такое подробное решение позволяет школьникам разобраться в каждом шаге задачи и понять, как был получен окончательный ответ. Чтение и понимание такого решения поможет ученикам в дальнейшем выполнении подобных задач.
1. Jane is as charming as Ann.
To make this sentence, we compare the charm of Jane and Ann. Both of them are charming, so we can use "as...as" to show that they have the same level of charm.
2. He is as tall as I.
To make this sentence, we compare the height of "he" and "I". If both of them are the same height, then we use "as...as" to express that idea.
3. Michael is as strong as his brother.
To make this sentence, we compare the strength of Michael and his brother. If both of them have the same level of strength, then we use "as...as" to show that.
4. Our car is as good as their car.
To make this sentence, we compare the quality of our car and their car. If both cars have the same level of goodness, then we use "as...as" to express that.
5. This report is as interesting as your report.
To make this sentence, we compare the level of interest in this report and your report. If both reports have the same level of interest, then we use "as...as" to show that.
6. Her new hat is as becoming as her skirt.
To make this sentence, we compare the level of attractiveness or suitability of her new hat and her skirt. If both items have the same level of becomingness, then we use "as...as" to express that.
7. Your job is as essential as his.
To make this sentence, we compare the level of importance or necessity of your job and his job. If both jobs have the same level of essentiality, then we use "as...as" to show that.
8. The sitting room is as large as the dining room.
To make this sentence, we compare the size of the sitting room and the dining room. If both rooms have the same level of largeness, then we use "as...as" to express that.
9. The ice-cream is as delicious as the cake.
To make this sentence, we compare the level of taste or flavor of the ice-cream and the cake. If both desserts have the same level of deliciousness, then we use "as...as" to show that.
10. His stories are as funny as his jokes.
To make this sentence, we compare the level of humor in his stories and his jokes. If both have the same level of funniness, then we use "as...as" to express that.
