Предмет: Математика, автор: orbit93

Дан ряд чисел.
15,21,14,15,20
Найти:а)моду б)среднее арифметическое в)размах

Задание 2
Решить задачу

За три булочки и четыре яблока света в буфете заплатила 500тг . Амир купил 4 таких булочки и 2 таких же яблока и заплатил 400тг . Сколько стоит одна булочка и одно яблоко?

дам 20 баллов

Ответы

Автор ответа: brainleum

Ответ:

Задание 1.

Модули чисел:

15 = |15|

21 = |21|

14 = |14|

15 = |15|

20 = |20|

Среднее арифметическое чисел:

(15 + 21 + 14 + 15 + 20) ÷ 5 = 17

Размах чисел:

21 - 14 = 7

Задание 2.

Яблоко стоит 80тг

Булочка стоит 60тг

orbit93: А втрое можно как решать?

brainleum: Блин, не знаю, думал без решения сойдет. Сейчас попробую как нибудь решить.

brainleum: Просто в уме решал, записать это сложно будет

orbit93: Ну напиши на листочке и закрепил а я сделаю ответ лучшим

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