The solution of the linear equation KX = 6 with one variable of X is an integer. Find the value of the integer K Who is going to teach you the answers to the seventh grade mathematics in the experimental version of the top students' class hour paper?

It's very simple, that is to decompose 6 into integer factors: 6 = 2 * 3 = (- 2) * (- 3)
Therefore, the value of integer k can be 2,3, - 2, - 3

When k is an integer, the solution of the equation kx-3 = 3x + 6 is a positive integer?

kx - 3 = 3x + 6
kx - 3x = 6 + 3
(k - 3)x = 9
x = 9/(k - 3)
Because the solution is a positive integer, K is also an integer
So K - 3 = 1 or 3 or 9
K = 4 or 6 or 12

Let kx-6 = 0 be an integer, how many integer values of K?

8, 1,2,3,6, - 1, - 2, - 3, - 6, respectively

Xiaojun's walking distance is 1 / 4 more than Xiaohong's, but Xiaohong's walking time is 1 / 10 more than Xiaojun's. what's the speed ratio between Xiaojun and Xiaohong?

25 to 18

English exercises for grade one!
Spell the following words according to the initials
1.They live in a (w ) house .
2.He travelled (f ) France to Italy.
Fill in the blanks with Prepositions
1.Mike likes jumping ___ the chair.
2.I told the teacher _ the whole thing.
3.The robber pushed him ___ a van.

Warm
From
On top
About
Into

As shown in the figure, there are three points a and B on the number axis. How to move two of the Abc3 points so that the numbers represented by the three points are the same? There are several different moving methods?
C is negative 3, B is negative 1, and a is positive 3

There are three different methods: 1. Point a moves 6 units to the left, point B moves 2 units to the left,
At this time, the numbers represented by a, B and C are all -- 3
2. Point a moves 2 units to the left and point C moves 2 units to the right,
At this time, the numbers represented by a, B and C are all -- 1
3. Point B moves 2 units to the right and point C moves 6 units to the right,
At this time, the numbers represented by a, B and C are all 3

The time ratio of a tailor to make a children's dress, a pair of trousers and a coat is 1:2:3. She can make two children's clothes and three children's clothes a day
Pants, 4 jackets. How many days does it take for him to make 2 jackets, 10 trousers and 14 children's clothes?

Set the time for making a children's dress as a
Then a + 2A + 3A = 24
a=4
Children's wear time 4
Pants time 8
The coat takes 12 hours
Then he needs (2 * 12 + 10 * 8 + 14 * 4) / 24 = 20 / 3 to make 2 coats, 10 pairs of trousers and 14 children's clothes

The tolerance of arithmetic sequence {an} is d = 5, S100 = 145, find: a1 + a3 + A5 +... + A99

a2+a4+a6+a8.+a100=x
There is a D difference between A1 and A2,... There is also a D difference between A100 and A99
There are 50 D
So a1 + a3 + A5 + +A99=x-50d
S100=x-50d+x=145
x=85
so A1+A3+A5+… +A99=85-25=60

6.09 cubic decimeter = () liter = () milliliter 1750 cubic centimeter =? () milliliter = () liter

6 90
1750 1.75

Buses and trucks travel from two places 852km apart and face each other at the same time. When they meet, the distance of buses is 189km less than twice that of trucks. How many kilometers do buses and trucks travel?

Suppose the freight car runs for X km, then the passenger car runs for 2x-189 km, x + 2x-189 = 852, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3x = 852 + 189, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3x = 1041, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 347; the passenger car runs for 2 × 347-189

The solution of the linear equation KX = 6 with one variable of X is an integer. Find the value of the integer K Who is going to teach you the answers to the seventh grade mathematics in the experimental version of the top students' class hour paper?