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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
36-26 = 10 one a and one B
10 × 2 = 20 two a and two B
26-20 = 6 a B
10-6 = 4 A
4×5+6×6=56
If pile a is transported to pile B for 10 tons, pile a will be 5 tons less than pile B. now after the same several tons are transported from both piles, the remaining 1720 tons in pile B is pile A. at this time, how many tons of coal is left in pile a?
(10 × 2-5) / (1-1720) = 15 × 203, = 100 tons
The ratio of a and B is 8:3. A is two and one seventh more than B. what's a
Formula calculation! No equations
A is 24 / 7. Solving process: let a be x and B be y. according to the conditions, the equation is listed: X / y = 8 / 3, that is, 3x = 8y; X-Y = 15 / 7. Solving these two equations, we get: x = 24 / 7, y = 9 / 7. Sorry, this problem can only be solved by equation. Let a be 8x and B be 3x, then 8x = 15 / 7 (two and one seventh) + 3x, so x is 3 / 7, then a is 2
A middle school will organize a spring outing for the seventh grade students. Mr. Wang and his classmates a and B will go to the bus rental company to discuss the car rental matters. (1) the two students know the price of the car rental from the company manager. The company manager said to them, "the company has two types of buses with 45 seats and 60 seats to rent. The rent of each bus with 60 seats is 100 yuan higher than that of 45 seats every day." Mr. Wang said, "I'm sorry The eighth grade of our school rented five 45 seat and two 60 seat buses in this company yesterday. The daily rent is 1600 yuan. Can you know how much each of the 45 seat and 60 seat buses costs per day? "A and B thought for a moment and said they knew the price. Smart, do you know how much each of the 45 seat and 60 seat buses costs per day? (2) The manager of the company asked, "how are you going to rent a car?" student a said, "my plan is to only rent a 45 seat bus, but one bus will have 30 seats left vacant." Student B said, "my plan only rents a 60 seat bus, which is just full and uses two fewer buses than student a's plan." Teacher Wang listened to their conversation and said, "from an economic point of view, it's not enough Is there any other plan? If it's you, how do you design a car rental plan and explain why
(1) If the daily rent of 45 seat bus is X Yuan and that of 60 seat bus is y yuan, then x + 100 = y5x + 2Y = 1600 leads to x = 200y = 300, so the daily rent of 45 seat bus is 200 yuan and that of 60 seat bus is 300 yuan; (2) if the total number of students is a, then a + 3045 = A60 + 2 leads to a = 240, so it costs 1100 yuan to rent 4 45 seat buses and 1 60 seat bus
The weight of pile a is 24 tons less than three fourths of pile B. If 48 tons are transported from pile B to pile a, the weight of pile a is exactly 11 / 8 of pile B. how many tons of coal are there in the two piles_ ∩)o
Suppose B: X tons, a: 3x / 4-24 tons
3X/4-24+48=11/8(X-48)
3X/4+24=11X/8-66
5X/8=90
X=144
144 * 3 / 4-24 = 84 tons
A: 84 tons, B: 144 tons
It is set that the coal in pile B is x tons and that in pile a is 3x / 4-24 tons
(3x/4-24)+48=(x-48)*11/8
The solution is: x = 115.2 tons
So there are 62.4 tons of coal in pile a and 115.2 tons of coal in pile B. question: that... Your answer is wrong-
If the difference between a and B is 10, 17 of a is equal to 14 of B, then a is a______ .
Let x = & nbsp; - 175, x = & nbsp; - 175
A total of 6 100 tons of goods are transported by 6 vehicles. Each vehicle a can load up to 16 tons, and each vehicle B can load up to 18 tons. A type a vehicle is rented
It costs 2500 yuan to rent two cars a and one car B. it costs 2450 yuan to rent two cars a and one car B of the same model. The rental fee for each car is the same. (1) how much is the rental fee for one car a and one car B respectively. (2) if the rental fee of the company does not exceed 5000 yuan this time, how many ways can we find out? Please design and find out the lowest rental fee
(1) Let's rent a car X Yuan, rent a car b y yuan. Countable equations: x + 2Y = 2500, 2x + y = 2450, the solution is: x = 800, y = 850; that is: rent a car 800 yuan, rent a car B 850 yuan
There are two piles of coal a and B. the weight of pile a is 24 tons less than that of pile B. If 48 tons are transported from pile B to pile a, the weight of pile a is exactly the same as that of pile B
Nine tenths. How many tons of coal are there in each pile?
It's solving equations, finding........
(3 / 4) B-A = 24
(B-48) (9 / 10) = a + 48
The solution is: a = 312, B = 448
A: 312 tons of coal a, 448 tons of coal B
A 312 tons, B 448 tons
One seventh of number a is equal to one eighth of number B. what is the ratio of number a to number B?
Let a be x and B be y, then 1 / 7X = 1 / 8y
So x / y = 7 / 8
A: B = 1 / 8:1 / 7 = 7:8
When a and B are not 0, a: B = 1 / 8:1 / 7 = 7:8
A: B = 1 / 8:1 / 7 = 7:8
X / 7 = Y / 8 multiply by 56 8x = 7Y X: y = 7:8
A truck transports 4 / 21 of a batch of goods in 2 / 3 of an hour. How many parts of this batch of goods can be transported in 1 hour? How many hours can this batch of goods be transported?
4 out of 21 divided by 2 out of 3 = 2 out of 7
1 divided by 2 / 7 = 7 / 2 hours
Let the truck carry x per hour.
2/3X=4/21 X=2/7
Divide 1 by 2 / 7 = 7 / 2 = 3.5 hours
2 / 7 3.5 hours of this shipment can be finished in one hour. I'm sorry, I don't want to solve the equation
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