Предмет: Математика, автор: iamnojedi7878

БУДЬЛАСКА ДОПОМОЖІТЬ

Вкажи найбільше двоцифрове число x, при якому значення виразу x-71 ділиться на 5 без остачі.

А

73

Б

95

В

96

Г

100

Д

99

Ответы

Автор ответа: mofantik

1

Можна це зробити методом підбору.
Оскільки число більше ніж 71 і повинно ділитися на 5 без остачі.
напишемо список чисел, які з -71 будуть ділитися на 5 без остачі.
76, оскільки 76-71=5, так і продовжуємо по +5
76; 81; 86; 91; 96; 101; 106....
Нам підходить число 96, тобто варіант В

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Read the article and tick A, B, or C.

CouchSurfing – a different kind of travel experience by Emma Jackson I love travelling abroad, but two years ago I didn’t have much cash to spend on my holiday. At first, I was planning to go camping again, but then a friend suggested an alternative: CouchSurfing. I had no idea what that was, so she explained. ‘CouchSurfers’ are people who stay as guests in other people’s homes for free, and visit the sights in the local area. You can do the things that most tourists do, like sunbathing on the beach or sightseeing in the town centre. Or your host could give you a language lesson, teach you how to cook local delicacies, or take you to places that visitors never find. It sounded much more fun than my other holidays, so I joined the website and sent emails to about twenty hosts in France and Spain right away.

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2

1 It was her first holiday in another country.
A True  B False  C Doesn’t say 

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A True  B False  C Doesn’t say 

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A True  B False  C Doesn’t say 

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9 Emma has now had three CouchSurfing holidays.
A True  B False  C Doesn’t say 

10 Claudette was Emma’s favourite host.
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