Floor Assignment Issues!!! Hurry!!! Help!!!

1.Speed sum = 308 3 = 308 3 km.

B speed = 308 3 (1 + 1 + 1 3) = 44 km h 2Set up x boys.

x-x/11=131-x-5

21x/11=126

x = 66 boys = 66 people.

Girls = 131-66 = 65.

3.Cooperative repair = 4 (1 10 + 1 12) = 11 15 and more = (1-11 15) 1 10 = 8 3 days 4Second month = 1-3 7 = 4 7

Total = 200 (4 7 - 3 7) = 1400 kg.

1. Set the speed of car B x, x+4 3x=308 3

Solution: x = 44 km hours.

2. If there are x boys, then 131-x will be girls, and it can be seen from the meaning of the question: x-1 11x=(131-5-1 11x) 2 solution: x=66,131-66=65

There are 66 boys and 65 women in this grade.

3. The efficiency of team A is 1 10, and the efficiency of team B is 1 12

The amount of work completed in 4 days of joint repair of A and B = 4x (1 10 + 1 12) = 11 15 and the remaining amount of work = 1-11 15 = 4 15

The remaining amount of work is required to be completed by A: 4 15 1 10 = 8 3 days 4, with x kg.

x=3/7x+3/7x+200

x=350kg

Solution 1: Let the speed of the car be x kilometers per hour, then the speed of vehicle A is (x+1 3x) kilometers per hour.

3x+3(x+1/3x)=308

2 solution: Let there be x male students and female (131-x) female people.

x-1/10x=131-x-5

3 Solution: It takes x days.

4 (1 10 + 1 12) + 1 10x = 14 solution: Let this batch of rice have x kilograms.

3/7x+(3/7x+200)=x

1.Suppose car B is 3, then car A is 4 Using the method of elementary school: 3+4=7 308 divided by 7 is 44 44 multiplied by 3=132

I'm sorry, but the wordless book of heaven generally requires legendary characters to understand.

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It's too powerful. lz: This is an exam, right??

1.Integer, fraction.

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10.5 or 5

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1) Consume the nutrients that are already there.

2) Carbon dioxide.

3) Shading Photosynthesis can produce starch.

4) Photosynthesis produces organic matter.