6th grade math problems are due tomorrow Kneel and beg !! Give points, everyone do a favor 5

Suppose there are x and y people in workshop A and B respectively.

x+y=200 (x-15) (y+15)=9 11 solution x=105 y=95

page: Assuming x pages have been read, then (x+30) (5x-30)=3 5 x=24 The whole book has 6x=144 pages.

Suppose the original velocity and distance are x, y respectively.

y x : y(1+1 3) x(1-1 6)=5:8 turns. I don't know how to add me.

6th grade math problems are due tomorrow Kneel and beg !! Give points, everyone do me a favor.

Bounty Points: 5 - 14 days and 23 hours until the end of the question.

1.In a subtraction equation, the sum of the subtraction, the subtraction and the difference is 240, and the ratio of the subtraction to the difference is 5:7, and the subtraction is ( ).

2.A and B have a total of 200 workers in the two workshops, if 15 people are transferred from workshop A to workshop B, the ratio of the number of people in workshop B and workshop A is 11:9, and there are workers in workshop A.

3.When Xiao Ming reads a book, the ratio of the number of pages he has read to the number of pages he has not read is 1:5If you read another 30 pages, the ratio of the number of pages read to the number of pages not read is 3:5The book has a total of ( ) pages.

4.If it takes a person to walk a distance at a certain speed for several hours, if the distance is increased by one-third and the speed is reduced by one-sixth of the original speed, then the ratio of the time required to the present is ( ).

5.The circumference of an equilateral triangle and a regular hexagon is equal, the area of an equilateral triangle is 48 square centimeters, and the area of a regular hexagon is ( ) square centimeters.

6 The two places are 90 kilometers apart, and two cars, A and B, drive from opposite places at the same time and meet in two-thirds of an hour. The speed ratio of car A and car B is 4:5, car A travels ( ) kilometers per hour, and car B travels ( ) kilometers per hour.

B and C are three sequentially meshed gears, and it is known that when gear A turns 5 times, B turns 4 times, and if B turns 3 times, C turns 1 turn. So when A turns 30 times, how many turns does C make.

Mine is correct.

6, A 60 B 75

7. C turns 8 times.

1.Divide 240 by 2 to calculate the sum of the minus and the difference

You can think of ** and small plates as a plate that can hold 16 apples, or you can understand a pair of large and small plates with 16 apples.

54=16 4-10 That is to say, if we use 4 super ** that can put 16 apples, we have to subtract 10 from 54 apples.

What plate can hold 10 apples? **Child! So we're going to subtract the number of **, so we need 4 small plates, and 3 **, and we can fill 54 apples!

Because each plate is full of apples, the number of ** and small plates is not 0.

Because there are 10 apples in the **, the multiple of the total minus 6 should be a multiple of 10.

54 24 30 (pcs).

**Sub: 30 divided by 10 3 (pcs).

Small plates: 24 divided by 6 4 (pcs).

Because a total of 54 apples are placed, the single digit of the number is 4, and no matter how many times 10 it is, it is impossible to get 4 in the single digit of the number, therefore, this 4 must be how many times of 6 is equal to dozens of four, four, six, twenty-four, 54 = 4 * 6 + 3 * 10, so there are 6 small plates on the table, 3 **.

3x+4y=54.where x and y must be integers. A3,4

3 **, 4 small plates.

Circumference l= d

The angle of this figure is 90°, which is 3-4 circumference.

So shadow perimeter = 3 4 d + d

Because it is a right angle, the arc length is the circumference of 3 4 3 4 times 2 r=3 2 r plus 2r r=5 so

c=3/4πd+2r

If you need to bring in the value of , you can bring in .

Solution, if the ** number of Li Xiaohua's family is abcdefg, there is.

abcdabc

efgdefg

According to the vertical formula above, by observing a+e+x=10, (x may be 1 or 0) so d=4, d+g=6, then g=2, g+c=9, c=7c+f=12, f=5, b+f=13, b=8, b+e+1=12, e=3, a+e+1=10, a=6.

So Li Xiaohua's ** number is.

1: The difference between a correct question and a false question is 16, first assume that they are all right, and then use the score difference to calculate a few mistakes (10x10-36) 16=4

Xiaohua is wrong (8x10-64) 16=1, right 8-1=7 strong is wrong (16x10-16) 16=9, right 16-9=7 two: boys and girls are 1 person different in each group.

Suppose all 9 groups are boys.

The number of girls in the group is (37-9x4) 1=1

So there are 32 boys and 5 girls.

Xiao Ming answered 6 correctly, answered 4 incorrectly, Xiaohua answered correctly 7, answered incorrectly 1, strongly answered correctly, answered 8 correctly, answered incorrectly 8

32 boys and 5 girls

Xiao Ming 6 questions, Xiao Hua 7 questions, Strong 7 questions. There are 5 women and 32 men. Big brother will work his own in the future!

This is a problem for unary equations, so don't you have to answer correctly x incorrectly (10-x).

Girls in class 1 = boys in class 2, the number of girls in class 2 = boys in class 1, in other words, the number of boys in class 1 and class 2 combined, the number of boys = the number of girls, and the number of girls in class 3 accounts for 40%, so the total number of girls in class 1 and 2 accounts for 60%, so the total number of boys in class 1 and 2 also accounts for 60%, and the boys in class 3 account for 40%.

The total number of girls in the third class is 2:3 compared to the girls in the first and second classes; That is to say, the number of girls in the third class is 2:3, the total number of boys in the third class is 1:3, and the number of boys in the third class is 1:9