Which is five seventh of a meter or one seventh of five meters long?

Which is five seventh of a meter or one seventh of five meters long?

Same length

There are only three scores for the judgment questions that are greater than 1 in 8 and less than 5 in 8, right?

There are countless scores greater than 1 in 8 and less than 5 in 8. Wrong
Wish you study better and better

The score of more than 25 and less than 45 is only 35______ (judge right or wrong)

① The number of fractions with the same denominator greater than 25 but less than 45 is 35. ② the number of fractions with different denominators: according to the basic properties of fractions, the numerator denominator is expanded by 2, 3, 4 at the same time For example, if the denominator greater than 25 but less than 45 is 10, there are 510, 610 and 710 fractions; if the denominator greater than 25 but less than 45 is 15, there are 715, 815, 915, 1015 and 1115 fractions. Because the number of multiples of 5 is infinite, there are infinite fractions with different denominators

The solution of the equation 2 / 2 x-1-m = 3 / 2x-1-6 / 5 is 0, and the solution of M is 0
【2】 Solve the equation: 0.2 x plus 0.4 - 0.5 x-3 = 2
【3】 The solution of the equation 4x = 3 (x-1) - 4 (x + 3) is 1 smaller than that of the equation AX-5 = 3A about X, and the value of a is obtained
【4】 When m is an integer, the solution of the equation (x-1 / 3) M = 2m / 1-3m is an integer?
First come, first score, don't make trouble! No answer before 8:30. The first problem is to find the value of M

1. Substitute x = 0 to get - 1-m = - 11 / 6
-m=-5/6
m=5/6
2.x/0.2+0.4-x/0.5-3=2
x/2+4-x/5-30=20
3x/10=46
x=460/3
3.4x=3x-3-4x-12
5x=-15
x=-3
Then the solution of the latter equation is x = - 4
-4a-5=3a
-7a=5
a=-5/7
4.m=1-3/x/3-1
m=-2/x-3/3
m=-6/x-3
x-3=1,2,3,6,-1,-2,-3,-6
x=4,5,6,9,2,1,0,

Solving mathematical problems (3 / 2x-1) - (2 / 5x + 1) greater than or equal to 1

x= 1
15/10X - 4/10X >= 1
11/10X >= 1
11/10 >= X

2x-12
How to solve 2x-1 < 5

2x-12

2x＋35=5x＋25 x=?

The result of X is ten thirds

How to solve 0.2x + (1-0.25) * 0.2x + 12 = 0.5x

0.2x+(1-0.25)*0.2x+12=0.5x
0.2x-0.15x+12=0.5x
0.5x-0.2x+0.15x=12
0.45x=12
x=80/3

2X-3.8=25.9-4.5x

2X-3.8=25.9-4.5x
2X+4.5x=25.9+3.8
6.5x=29.7
x=4.57
It turns out to be about the same

10x+5x+2(34-2x)=178

10x+5x+68-4x=178
11x=110
x=10