2. Three road construction teams * * * built1360m. Team A built twice as many meters as team B, and team B built 240 meters more than team C. How many meters did each team build?
3. Two iron wires with the same length, the first one is cut off 18cm, and the second one is cut off by 26cm. The remaining wire is three times as big as the second one. How long are the original two wires?
4. The sum of dividend, divisor and quotient is 2 12, and the known quotient is 2. What are the dividend and divisor respectively?
5. There are 800 bags of rice in warehouse A and warehouse B. If 25 bags are taken from warehouse A and put into warehouse B, and warehouse A has 8 more bags than warehouse B, how many bags of rice are there in each warehouse?
6. The father is 43 years old and the son is 1 1 year old. In a few years, my father will be three times as old as two characters.
7. Three tree planting teams planted 65,438+0,900 trees. Team A planted twice as many trees as team B. Team B planted 300 fewer trees than team C. How many trees did the three teams plant?
8. The sum of the three numbers A, B and C is 78, where A is twice that of C and B and B are three times that of C. Find these three numbers.
9. Two baskets of eggs are *** 19. If you put four eggs in the first basket and take two eggs out of the second basket, this second basket has 1 egg more than the first basket. How many eggs are there in the first basket and the second basket?
10. Among Xiaodong's books, 58 are not story books and 42 are not popular science books. There are 60 stories and popular science books in Xiaodong. How many popular science books are there in Xiaodong?
11.How many notes in 5 yuan 10 yuan, *** 175 yuan. 10 yuan has three times as many bets as 5 yuan, and there are several bets of both kinds.
Help me solve it, thank you. If some can't, it doesn't matter, but at least seven questions must be done. You can solve the equation or use the formula, but to solve the equation, you must write out how the solution is solved, not the answer directly. You have to do it step by step, thank you, and the day after tomorrow, please, the sooner the better. If you answer more than seven questions (and the requirements are useful, but not wrong), you will be rewarded.
The best answer is 1. There are three cars, A, B and C. The cargo of car C is half that of car B. Car B is less than car A by 160 kg, and car A is four times that of car C. How many kilograms do cars A, B and C each carry?
Suppose vehicle C is loaded with X kilograms, (2x+ 160)÷x=4, 2x+ 160=4x, 160=4x-2x, 160=2x, x=80.
Since c equals 80, b equals 80x2= 160 kg, and a equals 160+ 160=320 kg.
2. Three road construction teams * * * built1360m. Team A made twice as many meters as team B, and team B made 240 meters more than team C. How many meters did each team make?
Let team C be x meters, x+(x+240)+(x+240) x2 =1360, x+x+240+2x+480= 1360, 4x+720= 1360.
3. Two iron wires with the same length, the first one is cut off 18cm, and the second one is cut off by 26cm. The remaining wire is three times as big as the second one. How long are the original two wires?
Let the first iron wire be x meters, (x- 18)÷3=x-26, x- 18=(x-26)x=30, x- 18=3x-78, and x = 3x-78.
4. The sum of dividend, divisor and quotient is 2 12, and the known quotient is 2. What are the dividend and divisor respectively?
Frequency divider =2 frequency divider, 2 12÷2= 106, frequency divider = 106, 106÷2=53= frequency divider.
5. There are 800 bags of rice in warehouse A and warehouse B. If 25 bags are taken from warehouse A and put into warehouse B, and warehouse A has 8 more bags than warehouse B, how many bags of rice are there in each warehouse?
Let b be x, 800-x-25-8=x, 800-2x=25+8, 800-2x = 33, 800-33 = 2x, x=767÷2 and x=383.5.
6. The father is 43 years old and the son is 1 1 year old. In a few years, my father will be three times as old as two characters.
Let x years later, the age of the father is three times that of the second son, x+43=(x+ 1 1)x3, and the solution is x=5.
7. Three tree planting teams planted 65,438+0,900 trees. Team A planted twice as many trees as team B. Team B planted 300 fewer trees than team C. How many trees did the three teams plant?
Let B be an X tree, 2x+x+300+x= 1900, while x=400, A =400x2=800, and C =400+300=700.
8. The sum of the three numbers A, B and C is 78, where A is twice that of C and B and B are three times that of C. Find these three numbers.
Let c be x, x+3x-2+(3x-2)x2+4=78, x 8, b 22 and a 48. C is 8.
9. Two baskets of eggs are *** 19. If you put four eggs in the first basket and take two eggs out of the second basket, this second basket has 1 egg more than the first basket. How many eggs are there in the first basket and the second basket?
Let the armor basket X be X+4= 19-X-2- 1, and the solution of X = 6b is equal to 19-6= 13.
10. Among Xiaodong's books, 58 are not story books and 42 are not popular science books. There are 60 stories and popular science books in Xiaodong. How many popular science books are there in Xiaodong?
Let Xiao Tianyi * * * have X books, x-58+x-42=60, and X = 80.
11.How many notes in 5 yuan 10 yuan, *** 175 yuan. 10 yuan has three times as many bets as 5 yuan, and there are several bets of both kinds.
Let's make five yuan x sheets. 10x3x+5x= 175, and x=5, so there are 5x3= 15 pieces of ten yuan!
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There are still 0 points for so many questions ~ insincere ~ Responder: guixiang7788 | Level 3 | 201-8-2019: 40 | Report.
1, according to the meaning of the question, C=B/2. B=A- 160，A=4C。 Get A=2B, and then get B= 160. So A=320 and C=80. A+B+C=560。 2. Set B to build X meters. Then a is 2x and c is x-240. 2x+x+x-240= 1360.x=400, so A = 800 and C = 160. 3. Put a second rope where there are x meters left. Because the two ropes are the same length, 18+3x = 26+x.x = 4. The original length =26+4=30, and the two ropes are the same. 4. Let the divisor be x, then the dividend is 2x. There are 2x+x=2 12-2. Frequency divider x=70 Frequency divider = 140. Draw a picture on this topic. A is 25 * 2+8 = 58 more than B, B has (800-58)÷2=37 1, A has 37 1+58 = 429. 6.X years later. (43+x)/( 1 1+x) = 3，x = 5 ^ 7。 Set the x tree of the second species. 2x+x+x+300= 1900。 B x=400，A 2x = 800，C x+300 = 700。 8. Let b be x, 2x+4+x+3x+2 = 78x =12a = 2 *12+4 = 28bc = 3 *12+2 = 38. 9. Set X armor. B is 4+2+ 1 = 7 X+X+7 = 19 more than A. X = 6, and a is 13. 10, say five yuan x pieces. 10*3x+5x= 175 x=5. Ten yuan 15. Respondents: ♀ Smile | Level 2 | 20 1 1-8-20 20:03 | Report.
I smiled at it. Sorry, the tenth question is the last question just now. Now I'll give you the answer to the tenth question. It is best to draw pictures on this topic. He has science books, story books and other books, 58+42+60. You will find that these three books have been added twice each, so (58+42+60) ÷ 2 = 80 is his total collection, and 80-42=38 is the collection of science! Hehe, I'm tired of typing on my mobile phone ~ If you adopt it, please adopt a smile! Is it okay? Thank you, Respondent: 2952676 19 | Level 1 | 20 1 1-8-20 20:26 | Reporting.
1. Suppose that freight car C is loaded with X kilograms of goods, and the following problems are obtained: B=2X, A=2X+ 160, and A=4X means 4X=2X+ 160.
X=80, so C=80() B= 160, a = 320-* * * a+b+c = 560 (kg).
2. let b be x, then a is 2X and c is X-240.
And because three road teams built roads 1360m, they got X+2X +(X-240)= 1360, so they got X=400.
Team A built 800 meters, team B 400 meters and team C 160 meters.
3. Let the original two iron wires be x cm, and solve the equation X=30 from the question X- 18=3(X-26). Respondents: enthusiastic netizens | 201-8-20 20: 34 | newspaper.
A is four times as much as C, and B is twice as much as C, so A is twice as much as B. Because B is less than A by 160 kg, A is 320 kg, B is 160 kg, C is 80 kg, and a ***560 kg. Responder: I saw it, but I ran away from Level 1 | 201-8-2109: 34 | to report it.