If two dozen pencils cost 12 dollars then ,........pencils cost 2 dollars.
Có trên toán quốc tế, giải giúp mình nhé!
If two dozen pencils cost 12 dollars then pencils cost 2 dollars.
nếu có hai ta bút chì,giá là 12 đô la thì giá là 2 đô là thì có? bút chì?
2 tá=24 chiếc
giá một chiếc:24:12=2(đô la)
có số bút chì là:2:2=1(chiếc)
TICk mình nha!!!
If two dozen pencils cost 12 dollars then pencils cost 2 dollars.
tôi có 2 cây bút chì có 12 sọc và 2 sọc khác
tick nha
If two dozen pencils cost 12 dollar then ... pencils cost 2 dollar.
A box of erasers cost 4 dollars. A box of pencils cost 6 dollars more. Darwin spent 240 dollars on some boxes of erasers and pencils. The ratio of the number of pencil boxes to the number of eraser boxes was 4:5. How many boxes of pencils did he buy?
Hint: Supppose that Darwin bought x eraser boxes, then he bought \(\frac{4}{5}x\) pencil boxs. (\(x\in N,x>0\)
Because Darwin spent 240 dollars so we have equation:
\(4x+\left(4+6\right).\frac{4}{5}x=240\)
\(\Rightarrow12x=240\Rightarrow x=20\)
So Darwin bought 20 eraser boxes and 16 pencil boxes.
Have a good time :))
Một hộp tẩy giá 4 USD. Một hộp bút chì có giá 6 đô la hơn. Darwin đã chi 240 đô la trên một số hộp tẩy và bút chì. Tỷ lệ số lượng các hộp bút chì để số lượng các hộp tẩy là 4: 5. ông đã mua bao nhiêu hộp bút chì?
If two dozen pencils cost 12 dollar thenpencils cost 2 dollar.
15 pens and 7 pencils cost 59000đ; 5 pens cost 15000đ.
How much does one pencils cost?
Giải bằng tiếnh Anh, và đặt lời giải chi tiết
15 pens cost:
(15000 : 5). 15 = 45000 (đ)
7 pencils cost:
59000 - 45000 = 14000 (đ)
One pencil costs:
14000 : 7 = 2000 (đ)
the cost of 5 pencils is $9 hơ much does Mrs.emily have to pay for 10 pencils
we have : 5cs=9$
inferred 10cs = 9/5 x10
= 18( $)
the next time you write in Vietnamese !!!
1. Tanya is older than Eric. Cliff is older than Tanya. Eric is older than Cliff. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 2. Blueberries cost more than strawberries. Blueberries cost less than raspberries. Raspberries cost more than strawberries and blueberries. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 3. All the tulips in Zoe's garden are white. All the pansies in Zoe's garden are yellow. All the flowers in Zoe's garden are either white or yellow. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 4. The temperature on Monday was lower than on Tuesday. The temperature on Wednesday was lower than on Tuesday. The temperature on Monday was higher than on Wednesday. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 5. Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Pencils are more expensive than rulers. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 6. Apartments in the Riverdale Manor cost less than apartments in The Gaslight Commons. Apartments in the Livingston Gate cost more than apartments in The Gaslight Commons. Of the three apartment buildings, the Livingston Gate costs the most. If the first two statements are true, the third statement is _______. (true/ false/ uncertain) 7. All the offices on the 9th floor have wall-to-wall carpeting. No wall-to-wall carpeting is pink. None of the offices on the 9th floor has pink wall-to-wall carpeting. If the first two statements are true, the third statement is _______. (true/ false/ uncertain)
1. Tanya is older than Eric. Cliff is older than Tanya. Eric is older than Cliff. If the first two statements are true, the third statement is _false_. (true/ false/ uncertain) 2. Blueberries cost more than strawberries. Blueberries cost less than raspberries. Raspberries cost more than strawberries and blueberries. If the first two statements are true, the third statement is true_. (true/ false/ uncertain) 3. All the tulips in Zoe's garden are white. All the pansies in Zoe's garden are yellow. All the flowers in Zoe's garden are either white or yellow. If the first two statements are true, the third statement is _uncertain_. (true/ false/ uncertain) 4. The temperature on Monday was lower than on Tuesday. The temperature on Wednesday was lower than on Tuesday. The temperature on Monday was higher than on Wednesday. If the first two statements are true, the third statement is _uncertain_. (true/ false/ uncertain) 5. Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Pencils are more expensive than rulers. If the first two statements are true, the third statement is_false_. (true/ false/ uncertain) 6. Apartments in the Riverdale Manor cost less than apartments in The Gaslight Commons. Apartments in the Livingston Gate cost more than apartments in The Gaslight Commons. Of the three apartment buildings, the Livingston Gate costs the most. If the first two statements are true, the third statement is_true_. (true/ false/ uncertain) 7. All the offices on the 9th floor have wall-to-wall carpeting. No wall-to-wall carpeting is pink. None of the offices on the 9th floor has pink wall-to-wall carpeting. If the first two statements are true, the third statement is _false_. (true/ false/ uncertain)
A dozen pens cost 24.6 dollars. How much does each pen cost?
Đề tự dịch: Mười hai cây bút giá 24,6 đô-la. Hỏi giá của một một cây bút là bao nhiêu?
Vậy giá 1 cây bút là
24,6 : 12 = 2,05 đô-la
A dozen pens = 1 tá bút mực = 12 cái bút mực
=> 12 cái bút mực có giá 24.6 dollars.
Vậy một cái bút có giá là: 24.6 : 12 = 2.05 dollars.