-
Anonymous users2024-02-071. Bottom area: square meters.
Bottom circumference: m.
Surrounding area: square meters.
Therefore, the area of the plastered cement part is square meters.
2. The circumference of the bottom is centimeters.
Cloth required: square centimeters.
Yellow cloth required: square centimeters.
3. The bottom diameter is 12*3 4=9 cm; The radius is decimeter.
The base area is square decimeters.
The circumference of the bottom surface is: decimeters.
The surrounding area is square decimeters.
Therefore, the required iron sheet is square decimeters.
-
Anonymous users2024-02-06.14 3 2+ sq.m.).
2. Flower cloth: square centimeters).
Yellow cloth: 2 cm²).
3. Bottom diameter = 12 3 4 = 9 decimeters.
square decimeters).
-
Anonymous users2024-02-051.4-1=3 240 3=80 (book) Answer: There are 80 science and technology books.
2.A: Its bottom is 2s 4 cm.
3.174 (62+54)=hours) Answer: After hours, the distance between the two vehicles is 174 kilometers.
4.24 + 24 = 48 (tons) 5-1 = 4 48 4 = 12 (tons) 12 5 = 60 (tons) in parentheses (12) (60).
5.Yuan) 78-22 = 56 (yuan) 4 + 3 = 7 (this) 56 7 = 8 (yuan) Cong chain 8 + yuan) Answer: The unit price of the album and notebook is 8 yuan. (Album meta.) Notebook 8 yuan).
6.3-1=2 28 2=14 (years old) 14 3=42 (years old) Answer: Huahua and her mother are each 14 years old this year, and they are 42 years old. (Huahua is 14 years old, and my mother is 42 years old).
7.(km) A: The above-ground part is about a kilometer long.
I answered them one by one, and it was very hard! Hope the questioner! (*Hee-hee.......)
-
Anonymous users2024-02-04The volume of the original box = 5*4*3 =60
The volume of the cube = 3*3*3 = 27
Decrease (60-27) 60*100% = 55%.
-
Anonymous users2024-02-03The volume of the cuboid is 5*4*3=60
The largest cube can only be the size of 3 cm with a side length and a volume of 3*3*3=27
Then the percentage of volume reduction is: (60-27) 60=
-
Anonymous users2024-02-02The price of 6 tables and 9 chairs is equal, the ratio of the unit price of tables and chairs is 3:2, a table is 30 yuan more expensive than a chair, table: 30 * 3 = 90 yuan, can buy 720 90 = 8 (pieces) Chair 30 * 2 = 60 yuan, can buy:
720 60 = 12 (put).
-
Anonymous users2024-02-016 tables are more expensive than 6 chairs 6 30 = 180 yuan, which means that 9-6 = 3 chairs is 180, and each chair is 180 3 = 60 yuan. Let's do the math for yourself.
-
Anonymous users2024-01-31Step 1, 6 tables are 30 kt * 6 180 yuan more expensive than 6 chairs. It also states that 6 tables and 6 chairs + 180 yuan.
Step 2, 6 tables and 9 chairs, which means 6 chairs + 180 yuan 9 chairs. Description: 3 chairs 180 yuan.
Step 3, 1 chair 180 (9-6) 60 RMB.
Step 4, 1 table 60+30 90 yuan.
Step 5, 720 60 = 12 sheets.
6th up, 720 90 8 sheets.
-
Anonymous users2024-01-30If the table ** is X, then the chair ** is X-30
Column equation 6x=9(x-30).
Get x=90 so the table ** is 90 yuan, the chair ** is 60 yuan, you can buy 8 tables and 12 chairs.
-
Anonymous users2024-01-29Chair X, Table Y
y-x=30
9x=6yx=60，y=90
720 60 = 12 chairs.
720 90 = 8 tables.
-
Anonymous users2024-01-28It's very simple, the table is x, then the chair is x-30, and the equation is 6x=9(x-30) x=90
Therefore, if you buy a table, you can buy 720 90 = 8 (pieces) and 720 (90-30) = 12 (pieces) of chairs
-
Anonymous users2024-01-27Tables are $90 per table and chairs are $60 each. If you don't have a table, you can buy 8 pieces, and if you buy a chair, you can buy 12 pieces.
-
Anonymous users2024-01-26There are many methods, the most conventional is to use a 2-element system of equations, I don't know if you have learned it?
If not, use the heuristic method (the essence of the idea is still the dust-proof group), that is, suppose there are 8 tables and 6 chairs, to see if the price is in line, if not, the number of tables and chairs to increase or decrease the guidance meets the requirements.
Solution: (1) Set this road to be x meters.
x/30-x/50=100 >>>More
1 p q is the opposite of each other p q 0 original |0－1＋3|＝22 ∵|a|＞|b|and a is negative, b is positive |a＋b|-a-b original -a+(-a-b)+(b-a)-b= >>>More
At this time, there should be no problem with the structure of the child's essay, that is to say, the answer idea of the essay is quite clear, and the main point is in **? 1. Verbose That is to say, the language in the child's composition is repetitive, giving people a feeling of making up the number of words 2. This is also the most important thing is that the child's own thinking is lacking in the composition, without his own thoughts, everything is doing useless work. Therefore, it is best for him to develop a good habit of writing a diary or reading a book and writing about his feelings, and over time, he will have his own thoughts and style when writing essays.
What to eat for low blood pressure and dizziness.
1. 1 black-bone chicken (about 1500 grams). Wash the chicken belly, put 60 grams of angelica, 50 grams of astragalus, 150 grams of brown sugar, 50 grams of rice wine, and then sew the chicken belly tightly, steam it in the pot and water, eat meat and drink soup, eat it once every half month, and eat it for two months. >>>More
Well. Truth or Dare: That's how we used to play.
The number of people is indefinite, and then the first is to play rock-paper-scissors [this can be changed, with playing cards or other games], the losing person has to choose whether it is truth or dare, if it is true, the person who wins can ask a random question, no matter what the problem is that the person who loses, and if you choose the big risk, you can ask him to do something, and that thing he can't refuse. >>>More