There are a few questions in today s homework that I can t do, please help, I m in a hurry

It shows that the status of women in the old and new societies has changed dramatically.

3.Red: 1 Blue: 3 Yellow: 2 Green: 6.

Times. If you need to explain, just hi me.

All right, guaranteed.

Set A with x pots and B y pots.

Since purple flowers are only available in A and C, and 3750 flowers are used, then the number of pots of C is (3750-25x) 25, which is 150-x

2,900 safflowers were used.

So 15x+10y+10(150-x)=2900, simplified 5x+10y=1400, simplified x+2y=280, Huanghuayi shared 24x+12y+18(150-x), simplified, 6x+12y+2700

It is known that x+2y=280, then 6x+12y=6(x+2y)=1680, so goldenrod 6x+12y+2700=1680+2700=4380

Red, yellow, purple.

A 15 24 25

B 10-12

C 10 18 25

A + C = 3750 25 = 150 formula.

15 A + 10 B + 10 C = 2900, that is, 3 A + 2 B + 2 C = 580 formula.

=4A+2B+3C=580+150=730.

Yellow flower = 24 A + 12 B + 18 C = 6 (4 A + 2 B + 3 C) = 730 6 = 4380.

The third question, 3 hours of affairs, 7 parts is 21 parts, and 3 parts are 7 hours, 7 hours plus 5 hours is 12 hours, and the 9th question is 28 The first time I encountered it. The second time is, that is to say, the second two cars walked for 30 minutes after the motorcycle first encountered the car, and the motorcycle was also 30 minutes, the difference between the first motorcycle and the second motorcycle was forty minutes, the time difference between the first car and then the second car was forty minutes, the second car went for thirty minutes and ten minutes away, and the motorcycle had to walk for thirty minutes. So their time is compared to a car walking ten minutes away, a motorcycle walking for thirty minutes, a motorcycle walking in front of thirty minutes and a car can walk in ten minutes, you can calculate how much time to go to the car, the car walks for 70 minutes, 98 70 is.

One point four multiplied by sixty equals 84, 84 3 equals 28, and that 3 is the ratio of 10:30 minus 0.

The area of the white triangle is equal to half the area of the rectangle.

Then the sum of the area of tulips and moon flowers also accounts for half of the area of the rectangle.

Tulips are known to account for 17 50, then the moon flowers account for 1 2 17 50 of the whole

Finally, multiply by the total area, and you get it.

And you're doing the right one.

Quiz everyone: This is a math problem that can measure whether a person has business acumen.

Master Wang is selling Bu Ji fish, a pound of fish into the price of 45 yuan, now a big loss, the customer bought a kilogram for 35 yuan, gave Master Wang 100 yuan fake brother ant money, Master Wang has no change, so he found a neighbor for 100 yuan. Afterwards, the neighbor found that the money was fake in the process of saving money, and it was confiscated by the bank, and Master Wang paid the neighbor another 100 yuan, how much did Master Wang lose in total?

Note: kg vs. kg.

A total loss of 100 + (45 2-35) = 100 + 55 = 155 yuan.

The second question can be done like this.

The other problems are similar, using multiplication formulas.

Looking at your question, I found that it is all factoring part of the content, and it is the cross multiplication part, this part has no skills at all, it is good to be proficient, for example: 8x +26xy + 15y = (2x+5y) (4x+3y) to master the method, just practice more.

The ** you sent can't read clearly, and I won't do it for you.