The Three Kingdoms, outlaws of the marsh, Youth Daily and English daily are my favorite books

The Three Kingdoms, outlaws of the marsh, Youth Daily and English daily are my favorite books

"Romance of the Three Kingdoms" and "outlaws of the marsh" are my favorite books

Dream of Red Mansions, outlaws of the marsh and romance of the three kingdoms are all four famous works

Add "one" at the end of the sentence

Luo Guanzhong is the author of the romance of the Three Kingdoms in the four famous works of Chinese classical literature____ People of (Dynasty)

Ming Dynasty

X (the second power of x-6x-9) - x (the second power of x-8x-15) + 2x (3-x), where x = 1 / 3

X(X^2-6X-9)-X(X^2-8X-15)+2X(3-X)
=X^3-6X^2-9X-X^3+8X^2+15X+6X-2X^2
=12x
X = 1 / 3
Original formula = 12 * 1 / 3
=4

1. The distance between a and B is 200 kilometers. Car a runs from a to B for 40 kilometers per hour. After car a runs for 1.5 hours, car B runs from B to a
30 kilometers per hour. How long did car B run and meet car a?
2. A and B start from a and B at the same time by bike, and travel opposite each other. A travels 10 kilometers per hour, B travels 12 kilometers per hour, B arrives at a 1 hour and 6 minutes earlier than B. ask: (1) when do a and B meet after they start out? (2) what is the distance between a and B?

1) Suppose car B runs for t hours and meets car a
（1.5+t）*40+30t=200
t=2
………………
2) Suppose that it takes t hours for car B to travel to place a
12t=(t+1+6/60)*10
t=5.5
Total length: 12 * 5.5 = 66 km
The meeting time of the two people is 66 (10 + 12) = 3 hours

1+2+3+4+.+2001+2002+2003=?kkkkkk

1+2+3+4+.+2001+2002+2003
=(1+2003)×2003÷2
=2004×2003÷2
=4014012÷2
=2007006

A and B two cars from Xiangju 720 kilometers of two places at the same time, a car 100 kilometers per hour, B car 80 kilometers per hour
The two cars can meet in a few hours

Let's meet in X hours
（100+80）x=720
180x=720
x=720/180
x=4
A: we can meet in four hours

Given the equation 2x-3y = - 7, find the value of 3 (x + y) - 6 (X-Y)

It's x-3y = - 7
3(x+y)-6(x-y)=3x+3y-6x+6y=9y-3x=3(3y-x)=3*(-7)=-21

A and B leave from a and B at the same time and meet at 36km from the midpoint after 3 hours. It is known that the speed ratio of a and B is 3:2. How many kilometers are there between a and B?

A: the distance between a and B is 360 km

After 3 / 22 is converted into a decimal, the number on the 2013 digit to the right of the decimal point is? Simple method: 76 × 75 / 77=

3/22 = 0.13636
(2013 - 1) ÷ 2 = 1006
The number on the number 2013 to the right of the decimal point is 6