Solve an elementary school math problem! Please write down the specific answers

First of all, the question went wrong. Their money ratio is reversed, and the ** of the pants is x. Then 70+2x 70+x=4 3 gives x=35

Solution: Set the pants to be X yuan.

70+x）/（70+2*x）=（3/4）

x=35 yuan.

So a pair of pants is 35 yuan.

Set each pair of pants for a yuan, then Aunt Zhang spent a total of 70 + 2a yuan, and Aunt Li spent a total of 70 + a yuan, so (70 + a) :(70 + 2a) = 3:4 can find a, and finally a is equal to 35.

One pair of pants costs 70 yuan, and the other is about 94 yuan.

The money-to-number ratio should be 4:3.

70+2x)/(70+x)=4/3

The solution is x=35

The pants are $35.

Solution: Set pants x yuan.

70+2x）：（70+x)=4:3

x=35A: 35 yuan for pants.

Set the ** of the pants to x, and the meaning of the title is:

70+2x):(70+x)=4:3

Derived. x=35

Well, it should be 4:3, and the calculation process is described in the result 35 above

It should be 4:3, so the pants are 35

Question 1:

Length * Width = Base Area.

Total volume Bottom area = how thick it can be.

Question 2: Suppose everyone only uses 2 cubic meters of water, and Wang Hong's household uses 6 cubic meters of water.

Question 3: Set up the original X tons of rice in warehouse A, and 1 2x tons in warehouse B.

Warehouse A - Transported = Warehouse B - Transported Away.

x-86=1/2x-40

This is a primary school question, I wish you progress in your studies!

Question 1 9 6

Question 2 (13-1) 5+2

Question B in the third question has 86-40=46

A has 46*2=92

1.Set up shop x meters.

6*2 with x cubic meters.

3. The original rice x in the first warehouse

x-86=1/2x-40

Divide by the product of 6 times (6 times is the base area, because the base area multiplied by the height = volume, we do the reverse calculation, the volume divided by the base area = high).

Multiply by the dollar (water bill for using only two square meters of water).

Because the amount of water used by Wang Hong's family must have yielded results for both parties, he used 13 yuan to subtract 1 yuan from the water bill of the family. I get 12 yuan, which is the water fee for the water that exceeds the standard use. Then divide 12 yuan by the excess part of ** to get the square, which is the excess water. It adds up.

3. A = 2 B, 2 B (A) - 86 = B - 40, in order. Then the solution gives B = 46. A = 2 B = 92

Solution: Because it has been 30 days alone, the total amount is regarded as the unit "1" 1-1 6 = 5 6

A: 5 6-1 6=2 3

The efficiency of A is 2 3 8 = 1 12

So the number of days A has to do 1 1 12 = 12 (days) and my prime is correct!!

It takes x days to complete the nail alone.

1/x+1/30）×8+5/x+5/30=1-1/6x=

x is rounded to 33 days.

Assuming that it takes x days for the home to be completed, then 1-(8+5)*(1 x+1 30)=1 6

Solution x=65

First of all, in the first question, he asked how much money he needed to prepare, which must be greater than the actual amount of money, that is, more than 831 yuan, and in the second question, he asked if he could buy two things, giving three examples, not that you should buy three things, so you need to give three examples.

It depends on how to understand the topic.

The first question. Judging from how much money you need to prepare for the question, it should be to calculate the total ** of the 5 goods on the map; Looking at this question from another angle, if it is only for you to calculate the ** of three products, then there is no need to give 5 products. So the question should be like this: how much money should be prepared is to calculate the ** of 5 products, and how much is actually spent is to calculate the ** of 3 products.

There are two questions in this question, so the original meaning of the question should be to count twice.

The second question. This question does do a bit of a problem, the question asks which two goods can be bought, then only need to calculate the addition of the two goods, and the combination of total**less than 500 is the desired combination.

(1) Correct answer.

Solution: 138 140,295 300,398 400140 + 300 + 400 = 840 (yuan).

138 + 295 + 398 = 831 (yuan).

Answer: You need to prepare 840 yuan, but you actually spent a total of 831 yuan Because there are 2 questions about how much you need to prepare and how much you actually spent (2) 3 examples should be given for the requirements of the second question.