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Gọi số công nhân là x (người) và số ngày làm là y (ngày)
Ta có năng suất của mỗi người là như nhau nên số công nhân tỉ lệ nghịch với số ngày
⇒ \(y=\dfrac{a}{x}\)
Khi x = 20 thì y = 60 nên ⇒ \(60=\dfrac{a}{20}\Rightarrow a=60.20\Rightarrow a=1200\)
\(\Rightarrow x=12\) thì \(y=\dfrac{1200}{12}=100\)
Vậy 12 công nhân đóng xong chiếc tàu trong 100 ngày.
Ethnic Vietnam with four thousand year history of building and defending the country, during his long history with the good traditions handed down from generation to generation. One of them is the traditional loving human spirit of solidarity is expressed through the proverb: "aches tear".
As noted above, traditional human love, the spirit of solidarity, mutual assistance difficult times is one of the oldest traditions of our nation.
About proverb, this question has two layers of meaning, in terms of class layers literally means that we can see that it is right in every word that we do not need to infer anything. This class can understand the meaning of a tree, the fresh leaves can "cover" for the leaves do not heal torn to jointly overcome a rain storm that leaves do not fall off the other tear. From this literal class, we can infer the metaphoric layers proverb - a layer that is not shown directly, and the reader must infer based on class literally. With this proverb one can understand its allusions are talking about love, the spirit of solidarity to help each other when in trouble, tribulation. The rich shall help the poor, incomplete, help the needy. There are also many fishing knives, proverbs speak of this spirit as saying: "My Voting trade secrets taken along / But that other varieties but share the same platform," or "government interference that takes the mirror / person in a country must trade together ".
Warning risk mothers were obese by eating more fish in pregnancy
Children of mothers who eat too much fish in pregnancy, amely more than 3 meals / week, with the risk of obesity in the first year of life compared with children whose mothers who ate fish less when brought thai.Cac US scientists have issued a warning on the study published in the Journal of the American Medical Association (JAMA) issued on 15 / 2. to draw conclusions on, the scientists of the University of Crete has conducted analysis of more than 26,000 data pairs of mother and child in the US and many European countries, it was found Au.Ket kids whose mothers ate more than three servings of fish per week during pregnancy is the risk of overweight, obesity than children whose mothers ate fish less. In addition, mothers who ate more fish also increases the risk of other harmful chemicals commonly found in fish, particularly mercury, causing complications for pregnant nhi.Theo scientists, fish and other seafood providing ample nutrition for pregnant women and their unborn babies, to help children develop the brain. However, pregnant women should be noted only eat up to three servings of fish per week, especially those types of fish to eat only natural, not contaminated
Warning risk mothers were obese by eating more fish in pregnancy Children of mothers who eat too much fish during pregnancy, namely more than 3 meals / week, with the risk of obesity in the first year of life compared with children whose mothers ate less fish during pregnancy. US scientists have issued a warning on the study published in the Journal of the American Medical Association (JAMA) on 15 / 2. to draw conclusions on, the scientists of the University Crete has conducted analysis of more than 26,000 data pairs of mother and child in the US and many European countries Au.Ket found children whose mothers ate more than three servings of fish per week during pregnancy with risk of overweight, higher obesity compared to children whose mothers ate fish less. In addition, mothers who ate more fish also increases the risk of other harmful chemicals commonly found in fish, particularly mercury, causing complications for pregnant nhi.Theo scientists, fish and other seafood providing ample nutrition for pregnant women and their unborn babies, to help children develop the brain. However, pregnant women should be noted only eat up to three servings of fish per week, especially those types of fish to eat only natural, not contaminated.
^-^
tick nha
chuyện đó chả liên quan j với sự phỏ biến của E của
Chằng lẽ ngôn ngữ quốc tế lai bj thay bởi Tiengs Việt ; Lào : thái;........
Cũng hay nhẻ
Tiếng Anh vẫn còn và mãi mãi phổ biến vì nó là ngon ngữ thông dụng để nói chuyện với mọi người trên toàn thế giới. Có phải có mỗi nước Anh nói Tiếng Anh đâu bạn . Còn nhiều nước mà . VD: Mỹ, Singapo,..... Bạn ko cần phải lo đâu nka.
vì ba thằng Mĩ đen nghĩa là bố thằng Mĩ đen
tương tự với Mĩ trắng
tức là chỉ có 2 người thôi nha chị
Ba = bố
Ba thg Mỹ đen => 1 người
Ba thg Mỹ trắng => 1 người
1 + 1 = 2
Vừa đủ.
@Nghệ Mạt
#cua