Is there any kind-hearted person who can help me solve a math problem? The hedgehog can pick 20 pinecones every day in sunny days and 12 pinecones in rainy days. It can pick 88 pinecones for 6 consecutive days. How many days are there in sunny days and how many days are there in rainy days?

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• 1. Fill in the figure below with 5 / 12, 5 / 8, 2 / 5, 1 / 15, 11 / 40 to make the sum of the fractions in the two circles on each line equal Hehe is 5 / 12, 5 / 8, 2 / 5, 1 / 15, 11 / 40, 7 / 24
• 2. A cuboid, 5 cm longer, becomes a cube, and its surface area increases by 160 square cm. What is the volume of this cuboid______ Cubic centimeter
• 3. The math problems in volume two of junior high school are due this afternoon Sorry, I don't have points, so I can't give points. But I hope you can help me solve it 1. If an inner angle of a polygon with equal angles is n times of its outer angle, then the number of sides of the polygon is () A. It doesn't exist B、2N+2 C、2N-1 D. None of the above is true 2. In △ ABC, BP bisects ∠ B and CP bisects ∠ C. If ∠ a = 60 degrees, ∠ BPC = () 3. If the sum of interior angles of a polygon is 1260 degrees, then there are () diagonals passing through a vertex of the polygon 4. (n-k) M = ()
• 4. Some math problems in Volume 2 of junior high school (fill in the blanks) 1. If 2x-y = - 3, then the x power of 4 and the Y power of 2 = () 2. If m power of x = 2 and N power of x = 3, then 2m + n power of x = () 3. Given that the square of the algebraic formula 4x - (k-1) XY + 9y is a complete square, then k = () 4. If 2m power of x = 3, then 6m power of x = () thank you.
• 5. Two math problems in volume two of grade one! Help me if you can do them! For a container full of liquid medicine, pour out 10L and fill it with water. Then pour out 10L and fill it with water. At this time, the ratio of pure medicine and water in the container is 16:9? According to market research, the relationship between the selling price of the goods and the sales volume is: if the selling price of each product is a yuan, then (320-10a) pieces can be sold, but the price department limits that the price increase of each product can not exceed 25% of the purchase price, How much should be the selling price of each product? How many products should be sold? Thank you, today, I'm in a hurry ~ ~! Help, thank you!
• 6. As shown in the figure, fold △ ABC along De, if ∠ 1 + ∠ 2 = 80 °, then ∠ B=______ Degree
• 7. Three lines in the plane divide the plane into the least number of parts______ Blocks, at most______ Block
• 8. In the triangle ABC, DM and en divide AC and BC vertically and equally, intersecting AB with m, N. if ∠ MCN = 48 °, then ∠ ACB =?
• 9. Xiao Hua and Xiao Ming work out an integral multiplication problem (2x + a) (3x + b) at the same time. Xiao Hua copies "a" in the first polynomial into - A, and the result is 6x2 + 11x-10; Xiao Ming copies "3x" in the second polynomial into x, and the result is 2x2-9x + 10. (1) do you know the values of a and B in the formula? (2) Please work out the correct result of this problem
• 10. Arrange three numbers in turn: 3,9,8. For any two adjacent numbers, subtract the number on the left from the number on the right. The difference is written between the two numbers. A new number string can be generated: 3,6,9, - 1,8. This is called low order operation. Continue to operate in turn. Q: sum of all numbers after the 2009 operation Write down the process. Thank you!
• 11. 1. The East and West towns are 240 km apart. A bus leaves from the East Town at 8 am and a truck leaves from the West Town at 9 am. By 12 noon, the two cars just meet at the middle point between the two towns. If the two cars leave each other from 8 am to 10 am, the two cars will stop at the middle point between the two towns, How many kilometers are there between the two cars? 2. Car a and car B drive in the opposite direction from the midpoint between the East Village and the West Village at the same time. Six hours later, car a arrives at the East Village, and car B is 42 kilometers away from the West Village. It is known that car a's speed is twice that of car B. how long is the road between the East Village and the West Village? Please do not use the equation solution, use the general formula or comprehensive formula, please write the answer of the formula
• 12. How many fifth grade Olympiad math questions are urgent! Good hearted people come! The distance between two places on a river is 280 meters. A ship sails between them. It takes 14 hours to sail downstream and 20 hours to sail upstream. Find out the ship's velocity and current velocity in still water
• 13. If the figure is a hexagon composed of nine equilateral triangles, it is known that the side length of the smallest equilateral triangle in the middle is a, then the circumference of the enclosed hexagon is () A. 30ab. 32AC. 34ad
• 14. This is a test question of binary linear equations A new operation "*" is defined for real numbers x and Y. x * y = ax + by (A and B are constants). On the right side of the equation are the usual addition and multiplication operations. It is known that 3 * 5 = 15 and 4 * 7 = 28. What is a + B?
• 15. There are several books on both bookshelves A and B. If you take 100 books from bookshelf B and put them on bookshelf a, the books on bookshelf a are five times more than those on bookshelf B. If you take 50 books from bookshelf A and put them on bookshelf B, the books on both bookshelves are the same. How many books are there on each bookshelf, Linear equation of one variable
• 16. Given the set M = {x | x = 3N, n ∈ Z}, n = {x | x = 3N + 1, n ∈ Z}, P = {x | x = 3n-1, n ∈ Z}, and a ∈ m, B ∈ m, C ∈ P, and d = a-b + C, then (). A.D ∈ m B.D ∈ n C.D ∈ P D,
• 17. You need someone with a good head to answer this math problem There are six passengers on the train from Beijing to Guangzhou. A, B, C, D, e and F are from Beijing, Tianjin, Shanghai, Yangzhou, Nanjing and Hangzhou A and Beijing people are doctors, e and Tianjin people are teachers, C and Shanghai people are engineers; A. B, F and Yangzhou have been in the army, while Shanghai people have never been in the army; Nanjing people are older than a, Hangzhou people are older than B, and F is the youngest; B to Wuhan with Beijingers, C to Guangzhou with nanjingers According to the known conditions to determine each passenger from the city and occupation
• 18. Ask enthusiastic people to help answer A stationery store. If you buy more than 300 pens at a time, excluding 100 pens, you can buy them at wholesale price. Buy less than 300 pens and sell them at retail price. Xiao Ming buys pencils in the shop. If you buy one for everyone in the school. It can only be sold at retail price. It's 120 yuan. If you buy 60 more pens, you can buy them at the wholesale price. It will also cost 120 yuan. So. What's the size of this school. 2. If the purchase price of 6 pens at retail price is the same as that of 5 pens at wholesale price, how many people are there
• 19. On a straight road, two cars go in the same direction. At the beginning, car a is 4km in front of car B. the speed of car a is 45km / h, and that of car B is 60km / h. how many meters is the distance between the two cars one minute before car B catches up with car a? First order equation with one variable is solved,
• 20. 1, the standard equation of hyperbola 7x ^ 2 - 2Y ^ 2 + 8 = 0 is - the coordinate of intersection is—— 2. Ask for the hyperbolic standard equation of points F1 (0. - 5), F2 (0.5) and passing through point a (0.3)—— 3. On the hyperbola 4x ^ 2 - y ^ 2 + 64 = 0, the distance from a point P to one of its focal points is equal to 1. Then the distance from point P to another focal point is equal to 1———— I have run out of marks. I have no choice