Предмет: Математика, автор: zinkovdanylo

Стіни кімнати, довжина якої дорівнює 5 м, ширина — 4 м, а висота — 3 м, потрібно обклеїти шпалерами. Рулон шпалер має довжину 10 м і ширину 1 м. Яка найменша кількість рулонів шпалер потрібна для того, щоб обклеїти кімнату, якщо в ній є вікно площею 3 м2 і двоє дверей, кожні з яких мають площу 2 м2 ?

Ответы

Автор ответа: denis20202022

1

Ответ:

Пошаговое объяснение:

площадь комнаты

5*4*3 = 60 м2

площадь окна 3 м2

2 двери по 2 м2 = 4 м2

площадь комнаты без окон и дверей

60 - 3-4 = 53 м2

площадь рулона 10*1 = 10 м2

кол во рулонов 53/10 = 5,3

ответ: 6 рулонов

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