When I came to school, I put down my schoolbag and went into the classroom

When I came to school, I put down my schoolbag and went into the classroom

Logical error
Change to
When I came to school, I went into the classroom and [put down my schoolbag]

After breakfast, Mingming immediately picked up his schoolbag and went to school?

After breakfast, Mingming immediately carries his schoolbag to school

Modify the following sentences with a modifier
1. This year's Apricot harvest is in sight, and the growth is gratifying. 2

1. Delete "harvest in sight" or "growing well"
2. Delete the word "big" in "Big Apple"

In triangle ABC, ACOS (B + C) + bcos (a + C) = CCOS (a + b) judge the shape of triangle

Is sports in sports car an adjective or a noun

Of course, it's a noun. It's an apple tree
Come on! Ask again if you don't understand!

In the triangle ABC, ad is the middle line on the side BC of the triangle ABC, AB is equal to BC, and ad divides the perimeter of the triangle ABC into three and four parts to find the length of the side AC

1) AB + BD = 3, then AB = 2, BD = 1, CD = 1, AC = 4-CD = 3
2) AB + BD = 4, then AB = 8 / 3, BD = 4 / 3, CD = 4 / 3, AC = 3-cd = 5 / 3

Greatest common divisor least common multiple~
A B is a positive integer a = 630
a. The maximum convention number of B is 105
a. The least common multiple of B is 242550?
What is B equal to

First of all, 242550 refers to 242550. Not two. OK, let's start to analyze the thinking of this problem
A / 105 = 6. B / 105 = X. X and 6 have no common divisor, right
The minimum product of X and 6 should be 242550 / 105 = 2310
x=385
b=40425=385x105
385 and 6 have no common divisor, and the least common multiple is 2310

a. B and C are the three side lengths of △ ABC. It is known that the perimeter of △ ABC is 24cm, a + B = 2c, C + a = 15cm, and the three side lengths of △ ABC are calculated

a+b+c=2c+c=3c=24
c=8
a=15-c=7
b=24-7-8=9

The greatest common factor of the two numbers is 9, and the least common multiple is 243______ And______ ．

9 = 3 × 3243 = 3 × 3 × 3 × 3, these two numbers are 9 and 243, so the answer is: 9243

It is known that one intersection of the straight line y = K1X (K1 ≠ x) and the hyperbola y = K1 / X (K2 ≠ 0) is (- 2,5), and the other intersection coordinate of them is obtained
Such as the question, OK. Otherwise no one answers, the points will be deducted in vain

The values of K1 and K2 can be obtained by substituting the coordinates of the respective points into two functions. After knowing the analytic expressions of the two functions, the two functions can be put together as a binary system of first-order equations of X and Y. one group of solutions is known, and the other group is required