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A passenger car and a freight car leave from the two places at the same time. The distance between the two cars is 20 kilometers in 4.5 hours. The known speed of the passenger car is 60 kilometers per hour, and the speed of the freight car is 70% of that of the passenger car. How many kilometers is the distance between the two cities?
Truck speed: 60 × 70% = 42 (km) first case: (60 + 42) × 4.5 + 20 = 102 × 4.5 + 20 = 459 + 20 = 479 (km) answer: the distance between the two cities is 479 km. Second case: (60 + 42) × 4.5-20 = 102 × 4.5-20 = 459-20 = 439 (km) answer: the distance between the two cities is 439 km
How many times can b transport more goods than a? How many times can B complete the shipment?
18 × (1 + 13) = 18 × 43 = 161 △ 16 = 6 (Times) a: Vehicle B can transport 16% of the goods each time, and vehicle B can transport the goods 6 times
Two trucks of a and B transport coal, car a transport 5 times, car B transport 8 times. Car a transport 2 tons more than car B each time, the result of settlement, car a transport 14 tons less than car B
It can't be solved by equation to find how many tons B truck transports each time
Analysis: when Party A transports 5 times, Party A transports 5 * 2 = 10 tons more than Party B, Party B actually transports 8 times, and the remaining 3 times are 14 tons more than Party A's 5 times, that is, Party B transports 10 + 14 = 24 tons in these 3 times. Then, Party B transports 24 / 3 = 8 tons in one time
Each transportation by vehicle B: (14 + 5 * 2) / (8-5) = 8 tons
(5 * 2 + 14) / 3 = 8
A and B two trucks transport coal, a car transport 5 times, B car transport 8 times,. Car a transports 2 tons more than car B each time. As a result, car a transports 14 tons less than car B at the time of settlement. How many tons does car B transport each time?
The results are as follows
(2 × 8) - 8 tons
(2 × 5 + 14) / (8-5) = 8 (ton)
The distance between a and B is 684km. A passenger car and a freight car successively leave from the two places and run in opposite directions. The passenger car runs 52km per hour and the freight car runs 52km per hour
It's 42 km. The truck starts 2 hours before the bus starts. How many hours after the bus starts, the two cars meet?
Solve by equation
Encounter time = encounter distance △ speed and
(684-42×2)÷(52+42)
=600÷94
=6.38 hours
Let two cars meet in X hours
(52+42)×x=684-42×2
94x=600
x=6.38
To (684-42 × 2) / (52 + 42) = 6 and 47 minutes of 18 hours!
When a batch of goods is to be transported to a certain place, the owner of the goods is going to rent two kinds of trucks from the automobile company, i.e. truck a and truck B
The first time, the second time
A (vehicle) 25
B (vehicle) 3 6
Accumulated freight (ton) 15.535
At present, the consignor rents 3 a-china trucks and 5 B-type trucks from the company. After the goods have just been delivered, if the freight is 30 yuan per ton, what is the total amount of payment to be made by the consignor?
Suppose that each truck of type a carries x tons of goods, and each truck of type B carries y tons of goods. For the first time, each truck of type a carries 2x tons of goods, and each truck of type B carries 3Y tons of goods; for the second time, each truck of type a carries 5x tons of goods, and each truck of type B carries 6y tons of goods
2X+3Y=15.5
5X+6Y=35
Solving the equations, we get x = 4, y = 2.5
The consignor now rents 3 class a freight cars and 5 class B freight cars to carry the following goods:
3 × 4 + 5 × 2.5 = 12 + 12.5 = 24.5 tons
If the freight is 30 yuan per ton, the total freight is 30 × 24.5 = 735 yuan
A: the total amount payable by the consignor is 735 yuan
Suppose that each truck of type a carries x tons of goods, and each truck of type B carries y tons of goods. For the first time, each truck of type a carries 2x tons of goods, and each truck of type B carries 3Y tons of goods; for the second time, each truck of type a carries 5x tons of goods, and each truck of type B carries 6y tons of goods
2X+3Y=15.5
5X+6Y=35
Solving the equations, we get x = 4, y = 2.5
The consignor now rents 3 class a freight cars and 5 class B freight cars to carry the following goods:
3 × 4 + 5 × 2.5 = 12 + 12.5 = 24.5 tons
If the freight is 30 yuan per ton
Suppose that each truck of type a carries x tons of goods, and each truck of type B carries y tons of goods. For the first time, each truck of type a carries 2x tons of goods, and each truck of type B carries 3Y tons of goods; for the second time, each truck of type a carries 5x tons of goods, and each truck of type B carries 6y tons of goods
2X+3Y=15.5
5X+6Y=35
Solving the equations, we get x = 4, y = 2.5
The consignor now rents 3 class a freight cars and 5 class B freight cars to carry the following goods:
3 × 4 + 5 × 2.5 = 12 + 12.5 = 24.5 tons
If the freight is 30 yuan per ton, the total freight is 30 × 24.5 = 735 yuan
A: the total amount payable by the consignor is 735 yuan. Put it away
Use two trucks a and B to transport coal! Car a transported coal, six times car B transported coal, nine times car a transported coal. Every time car a ate coal, it transported 1.8 tons more than car B. when it finished, car a transported coal less than car B
Two trucks of a and B are used to transport coal! Car a has transported coal, six times, car B has transported coal nine times, car a has transported 1.8 tons more than car B every time, and car a has transported 12 tons less than car B at the end of transportation, and car B has transported several tons each time
8 + 12 = 22. 8 tons, 22. 8 / 3 = 7. 6 tons. It's hard to use the solution equation. Suppose B transports x tons each time. A transports x + 1. 8 tons each time. According to the total difference of 12, we get 9x-6 (x + 1. 8) = 12. The solution of x = 7
If you give 17 of the number a to B, then the numbers a and B are equal. What is the ratio of the number a to the number B______ .
The number of B is the number of a: 1-17-17 = 57; then the ratio of a and B is 1:57 = 7:5
The factory rented 10 cars to transport 480 tons of goods, and each car transported 12 times. How many tons of goods per car?
480 ﹣ 12 ﹣ 10, = 40 ﹣ 10, = 4 (tons); answer: 4 tons per vehicle
Excuse me, Party A and Party B have two trucks carrying coal. Party B has carried coal for eight times and Party A has carried coal for five times. Each time, Party A has 1.6 tons more than Party B. at the time of settlement
Car a and car B transport 34 tons in total. How many tons does car B transport each time?
A 3.6 tons B 2 tons
If there is no oil leakage from the joint of the oil cylinder, it is not the oil seal problem. The oil leakage from the multi way valve is normal, and there is still pressure in the oil return circuit, but it is not big enough. The oil return pressure is to ensure that the other working chamber will not be sucked into a vacuum when the oil cylinder acts
Suppose that vehicle B transports x tons each time, then vehicle a transports x 1.6 tons each time
We get x = 2T
There was no answer from upstairs
Let car B transport x tons each time, then car a transport x 1.6 tons each time. According to the equation 8x-5 (x 1.6) = 103 x = 18 x = 6 A: car B transport 6 tons each time. Ask: seek the formula
If you give 17 of the number a to B, then the numbers a and B are equal. What is the ratio of the number a to the number B______ .
The number of B is the number of a: 1-17-17 = 57; then the ratio of a and B is 1:57 = 7:5
RELATED INFORMATIONS
- 1. When a batch of goods is to be transported to a certain place, the owner of the goods is going to rent two kinds of trucks from the motor transport company. The situation of renting these two kinds of trucks in the past is shown in the table below Now we rent 5 A-type trucks and 6 B-type trucks from the company. We have just finished the goods at one time. How many tons of the goods are there? The first time and the second time Number of goods vehicles of Party A 3 2 Number of vehicles of goods B 4 3 Cumulative tonnage 36 26
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- 3. The ratio of people in workshop a and workshop B is 5:4. If 21 people are transferred from workshop a to workshop B, their ratio is 2:3. How many people are there in workshop a and workshop B
- 4. There are 640 tons of cement in a construction site. 8 / 3 of the total amount is used in the first time, and the remaining 8 / 3 is used in the second time. How much cement is used in the two times
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- 12. The transport team transported a batch of rice to the disaster area. In the morning, it took 4 trucks to transport 25, with an average of 20% per truck______ What about the rest of the rice______ The car can't be finished
- 13. When the two vehicles meet, the distance ratio of the two vehicles is 5:4; after the meeting, the truck is 27 kilometers faster than the bus per hour As a result, the two cars arrived at the other side's departure station at the same time. It is known that the freight car has been running for 10 hours. How many kilometers is the distance between a and B?
- 14. A and B have 300 tons of coal in total. A transports two fifths of the coal and B transports back two fifths of the coal. Now B has 20 tons more than A. how many tons each of a and B?
- 15. The transport team has to carry 72 tons of goods, 16 vehicles have been carried away, and there is still one ninth of them without dizziness. How many tons of goods are carried by each vehicle on average?
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- 20. At this time, the weight of coal in pile B is 8% less than that in pile a?