1 3 Put the adjectives into the comparative form to complete
the text.
THE FROG AND THE OX
Once upon a time there was an ox. He had a difficult life, but he
always looked fantastic. One day, he met a little frog. The frog
had a great life - it was a much (1).
(easy)
(2)
(enjoyable) and more interesting life than
the ox's – but he was jealous of the ox. ‘Look at that ox" he said to ha
friends. 'He's much (3)
(big) than me. I'm really
small. He's much (4).
(strong) than me. I'm really
weak. He's much (5).
(good) than me. But I'm sur
I can be as big and wonderful as him if I try?
So the frog started to make himself bigger (frogs can do that!). 'Aml
(6)
(large) than the ox yet?" he asked his friends
"No, not yet they said. He got bigger and (7).
"Am I larger than the ox yet?” he asked his friends. 'No, not yet they
said, 'but please stop. It's very dangerous!
But the frog didn't listen. He got bigger and bigger and bigger - and
eventually exploded!
And that was the end of the frog.
у--девочек
1х+5х+2у+6у=220
6х+8у=220
3х+4у=110
4у=110-3х
у=(110-3х)/4
у=27,5-0,75х
27,5-0,75х>0
0,75х<27,5
х<36 2/3
Поскольку х и у целые числа 0,75х должно кончатся на .. ,5
Это четные числа, не кратные 4: 2,6,10,14,...30,34
х у=27,5-0,75х Омлеты:3х+4у
2 26 110
6 23 110
10 20 110
14 17 110
18 14 110
22 11 110
26 8 110
30 5 110
34 2 110
ответ:110
Наверно, есть изящнее решение, но лень думать
Тогда
m+k=45 (кг)
30%=0,3
После того, как продали 1/3 конфет, масса ящика с конфетами уменьшилась на 0,3 и стала 1-0,3=0,7 от прежней и стала
45•0,7=31,5 (кг)
Конфет осталось
k-¹/₃k=²/₃k
Составим систему уравнений
| m+k=45
| m+²/₃k=31,5 (кг) . домножим на -1, сложим оба уравнения и получим
¹/₃k=13,5⇒
k=13,5•3=40,5 (кг)
m=45-40,5=4,5 (кг)
Масса пустого ящика 4,5 кг.
Как писать краткое условие, не помню, но Вы наверняка знаете и сможете записать так, как требует учитель.