The number of male workers accounts for 60% of the total number, and the number of female workers is equal to ()

The number of male workers accounts for 60% of the total number, and the number of female workers is equal to ()

Two thirds of women account for 40 percent, and 40 percent accounts for two-thirds of 60 percent

Given x + y = 5, find 2x + 4xy + 2Y - 2

2 (x + y) - 2 = 50-2 = 48

The 29th Olympic Games will be held in Beijing in 2008, the same year as that

2008 is a leap year with 366 days. As long as the four digit number of years can be divided by 4, that year will be a leap year with 366 days. For example, 2000, 2004, 2012
One of every four years is a leap year

If (x2 + 2x + 3) (3y2 + 2Y + 1) = 4 / 3, find the value of X + y!
If (x2 + 2x + 3) (3y2 + 2Y + 1) = Four Thirds
Find the value of X + y
Note: 2 after the letter in the title represents the square of the previous letter!
(my math teacher didn't do it.) I'm in grade one

(X2+2X+3)=（x+1）2+2≥2
(3Y2+2Y+1)=3*(Y2+2Y/3+1/3)=3*(Y+1/3)2+2/3≥2/3
So (x2 + 2x + 3) (3y2 + 2Y + 1) ≥ 2 * 2 / 3 = 4 / 3
The equal sign holds when x + 1 = 0 and y + 1 / 3 = 0
x=-1,y=-1/3
x+y=-4/3.

The number of students in three classes in Grade 6 is between 200 and 250. In the school sports meeting, six (1) accounts for 1 / 6 of the whole grade, two accounts for 1 / 8, three accounts for 1 / 9. How many students are there in Grade 6?

It is to find the common multiple of 6, 8 and 9. The least common multiple is 72. The one larger than 72 is 72 * 2 = 144. The one between 200 and 250 should be 72 * 3 = 216
The answer is 216

How much is 56 degrees 18 minutes 28 seconds minus 20 degrees 49 minutes 39 seconds?

35 degrees 28 minutes 49 wonderful

The average number of a, B and C is 14 and 3 branches 2. The ratio of a to B is 4 to 1. A is 1 more than C. what are the three numbers of a, B and C

The average of the three numbers is 14.2/3, and the sum of the three numbers is 14.2/3 × 3 = 44
The number of a is four times that of B, and the number of C is one less than that of B
So the number B is: (44 + 1) / (4 + 4 + 1) = 5
The number of a is 5 × 4 = 20
The number C is 20-1 = 19

The concept of factorization

Factorization, which transforms a polynomial into the product of several simplest integers, is also called factorization

Number a is 20% less than number B. the sum of number a and number B is 360. What is the number B

1. Set the number B as X, then the number a is 80% X
x+80%x=360
1.8x=360
x=200
So the number B is 300
2. Non column equation
1-20%=80%
1+80%=1.8
360÷1.8=200

If x = 3 is the solution of equation AX = 5, then equation 3 (x-a) is equal to 6, then what is x equal to?
If x = 3 is the solution of equation AX = 5, then equation 3 (x-a) is equal to 6, then what is x equal to?

x=3
Ax=5
A=5/3
3 (x-a) = 6 into a = 5 / 3
3(x-5/3)=6
x-5/3=6/3
x-5/3=2
x=2+5/3
X = 3 2 / 3 or 11 / 3