Give me a lot of application problems, and everyone tell me how to do a application problem?

1. The machine tool factory produced 570 machine tools in the first quarter, 90 more than planned, and exceeded the plan.

2. For a project, if Team A completes the total project in 3 days alone, how many days does it take to complete the entire project according to this calculation?

3. A and B are 32 kilometers apart, A and B start from A and B at the same time and travel in opposite directions, the ratio of the speed of B and A is 3:5, how many kilometers did A travel when they met?

4. The area of a trapezoid is 12 square decimeters, the upper bottom and the height are decimeters, and the lower bottom is how many decimeters long? (Solved with equations).

5. It used to cost 78 yuan to make a set of school uniforms, but now the price of each set is 12 yuan, how many sets can be made for the original 60 sets of school uniforms?

6. Mr. Zhang borrowed a book, read 30% of the whole book on the first day, read 14 pages less than the whole book on the second day, and read a total of 70 pages in two days, how many pages is there in this book?

7. A cylindrical glass cylinder with a bottom radius of 2 decimeters, which contains decimeter deep water, put an irregular piece of iron into this cylinder of water, and the water surface rises by decimeters, what is the volume of this piece of iron?

1. Li Ming deposited 500 yuan in the bank, and after a year, he withdrew the principal and interest yuan and asked for the annual interest rate.

2. There are 160 more apple trees than pear trees in the orchard, and there are fewer pear trees than apple trees. How many apple trees are there in the orchard?

3. A car drives from Dongcheng to Xicheng, traveling 41 kilometers per hour in the first 3 hours and 220 kilometers in the next 4 hours, how many kilometers does the car travel per hour on average?

4. The construction team can pave 15 square meters with 480 square bricks, according to this calculation, the floor of the school's electronic classroom is 120 square meters, how many square bricks need to be purchased? (Proportional solution).

5. Weld a rectangular bucket without a lid with a bottom surface length of 25 cm and a height of 40 cm with iron sheet, at least how many square centimeters of iron sheet is needed?

1) Find out how many people are in the three tree planting teams. Fill in the data in the table.

2) Find out how many trees each of the three teams will plant on average. Fill in the number in the table.

7. There were 180 students in the sixth grade of Hongguang Primary School last semester, the number of boys increased by 16% this semester, and the number of girls decreased by 6, there were 186 students in the whole grade this semester, how many boys were there in the sixth grade last semester?

1.Motorcycle A travels 65km per hour, and the speed of B's bicycle is 1 5 times that of A, and A and B travel in opposite directions from two places 91km apart at the same time, and they arrive at each other's station to rest for 15 minutes, and then return to the starting place and meet for the second time on the way. How many hours did the two share from departure to their second meeting?

2.In a math competition, Cong Cong and Jia Jia scored as follows: Cong Cong answered 1 3 of all the test questions incorrectly, Jia Jia answered 7 questions correctly, and Cong Cong and Jia Jia answered 1 5 of all questions incorrectlyWhat is the minimum number of questions that both of you can answer correctly?

3.There are 128 students in the fourth grade of an elementary school, and the ratio of the number of students in the fourth grade to the number of students in the fifth grade is 4:5Students in two grades make up 40% of the total number of students in the schoolHow many students are there in this school?

4.The original price of a suit is 480 yuan, but due to seasonal price adjustments, the price is reduced—**, how much does this suit sell for now?

5.The road repair team has built a road, which has been repaired 240 meters, which is less than the rest - how many meters of this road is left unrepaired?

6.For a project, it takes 20 days for Team A to complete alone, and 30 days for Team B to complete alone; After team B repairs it for a few days, team A can finish it in 8 days?

7.Red Star Elementary School, there are a total of 785 students in the fifth and sixth grades, of which the number of students in the fifth grade is equivalent to that of the sixth grade, how many students are in the sixth grade of Red Star Elementary School?

8.There are two barrels of gasoline A and B, and they are poured from barrel A to barrel B, and then there are kilograms of gasoline in barrel B, how many kilograms of gasoline is there in barrel A?

9.Fast and slow cars travel in opposite directions from 480 kilometers apart at the same time, and 3 hours later are still far from each other—at this speed, how many hours will it take for the two cars to meet?

1. Multiple choice questions (3 12=36) 1 The following equations are binary and the equation is ( )a)8x+3y=y(b)2xy=3(c)2239xy=(d)13xy=+ 2 The solution of the system of equations 13xyxy = += is ( )a, 21xy= = b, 12xy= = c, 32xy= = d, 12xy= = 3, the solution of the inequality x32>50 is ( )76, 73, 79, 80, ,90, 60 a, 5 b, 6 C, 7 D, 8 4In the following equations, the unary inequality is ( )a, 5 4>8 b, 12 x c, x2 5 d, xx31 0 5 The solution of the system of equations is ==yx2 , then the two numbers that are masked are ( )a)1,2(b)1,3(c)2,3(d)2,4 6, if bap, then the correct one of the following inequalities is ( )a, ba+ +33f b, 0fba c, ba3131f d, ba22 f 7, the difference between and is not greater than 2 in terms of inequality and is correct ( The solution of the system of a, 2 fed b, 2 ped c, ed 2 d, ed 2 8 equations 13xyxy = += is ( )a, 21xy= = b, 12xy= = c, 32xy= = d, 12xy=

Buy it yourself at the bookstore, and you will have as much as you want. I can't write it here.

You can go buy a copy, why bother checking it.

Pears: 40 baskets of late digging of the stool.

Apple: It is two-fifths of a pear, and one apple is 40 two-fifths of a jujube core = 16 baskets.

Bananas: Apples are four-sevenths of bananas 16 four-sevenths = 28 baskets.

This is the dividing sign, because two-fifths and two-sevenths are not good to play the sedan car, so they use Chinese instead.

You said you don't need to solve the equation, so I'm just going to do the equation.

(1)、y= (b＜x≤5000)

The following table shows the actual medical expenses incurred by three villagers in a village in 2005. This condition is not in the question and cannot be calculated concretely.

The proportion of distance traveled on the first day: 10*1 5=2

The proportion of the second day is: 3-2=1 (because the proportion of the distance traveled is 3, which is the proportion of the second and third days).

So the next day is 1 10 of the total, so 450 * 10 = 4500 so A and B are 4500 kilometers apart.

Let the unit price of the last time be y yuan, and a total of x kilograms were bought, so you can get the equation of potato hunger: xy=20,20+4) y-1=(1+50%)x, put the first formula of Lu Shou into the second one, you can get x=4, y=5 (xy=20 is that the unit price of the first day is equal to the amount of money spent, and the meaning of the second formula is: the money spent on the second day divided by the activity **, you can get the number of fruits bought the next day).

Hopefully you will be early, o( o hahaha

4x83+20=332+20=352

709 352 = 2 yuan per day + 5 yuan = 1 yuan per person.

That friend out 20x2+1=41 yuan.

709 83 times 20 times 1 5 equals, is that the answer correct?

Interest = Principal x Monthly Interest Rate x Time.

Growth rate of turnover = increase in turnover of the last turnover.

So. The growth rate of karma = (550-500) 500 = 10% Thank you Gao Hu.

It's very simple, you start by adding 1 to each item, and it becomes like this:

10，100，1000，10000，…, 10 to the n power, so the sum of the first n terms plus n 1s is 111....1110, a total of n 1s in front!

Finally, the sum of the first n terms is 111....1110-n!!!

Solution: an=10n 1

sn=10n－1)－