It is known that a * 6 / 5 = 9 / 10 * b = 13 / 13 * C, and ABC is not equal to 0. Try to arrange ABC in the order of% d% a

It is known that a * 6 / 5 = 9 / 10 * b = 13 / 13 * C, and ABC is not equal to 0. Try to arrange ABC in the order of% d% a

Let their values be equal to 1, then a = 5 / 6, B = 10 / 9, C = 1, so B & gt; C & gt; a

Ax + BX = 0 when a B satisfies the magic condition, the solution set of the equation is a finite set. My answer is that B equals 0 and a does not equal zero. The answer is the opposite of me. Am I right or am I right?
Ax + B = 0 when a B satisfies the magic condition, the solution set of the equation is a finite set. My answer is that B equals 0 and a does not equal zero. The answer is the opposite of me. Am I right or am I right?

ax+b=0
ax=-b
a0 x=-b/a
A = 0, B0 has no solution
The equation a = 0, B = 0 has innumerable solutions
So A0 B = 0
The answer is wrong

Chicken and rabbit a cage, count head has 35, feet have 94, ask rabbit and chicken each have how many

Suppose it's all rabbits
35*4=140
140-94=46
46 divided by 2 = 23
35-23=12
A: there are 23 chickens and 12 rabbits

Given 2x - / Y / = - 7,3 / X / + 2Y = 0, then what is XY equal to

6
If x and y are positive and negative respectively, we can get the solution

Subtract 7 times a number from 50, and the difference is 21.3?

50-7X=21.3 -7X=-28.7 X=4.1

Mathematical problems known positive integers x, y satisfy x ^ 2-y ^ 2 = 24, find the value of XY (x + y)

X ^ 2-y ^ 2 = 24 (x + y) (X-Y) = 2424 = 1 × 24 = 2 × 12 = 3 × 8 = 4 × 6x, y is a positive integer, x, y may satisfy the following equation: x + y = 24x-y = 1, solve x, y is not an integer, round off. X + y = 12x-y = 2, solve x = 7, y = 5x + y = 8x-y = 3, solve x, y is not an integer, round off x + y = 6x-y = 4, solve x = 5, y = 1x = 7, y = 5 or x = 5

The school has organized tree planting activities. It is known that there are 23 people planting trees in place a and 17 people planting trees in place B. now 20 people are transferred to support, so that the number of people planting trees in place a is more than twice that of place B. how many people should be transferred to place a and place B?

If x persons are transferred to B, then 20-x persons are transferred to a. the equation is: 2 (17 + x) + 3 = 23 + 20-x & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 2; 20-2 = 18 persons. A: 18 persons are transferred to a, and 2 persons are transferred to B

Let a, B, C and d be non-zero real numbers, which are a set of possible values of y = A / | a | + | B | / B + C / | C | + | D | / d
Yes, please reply

All greater than 0
y=a/|a|+|b|/b+c/|c|+|d|/d=1+1+1+1=4
1 negative number
y=a/|a|+|b|/b+c/|c|+|d|/d=-1+1+1+1=2
Two negative numbers
The original formula = - 1-1 + 1 + 1 = 0
Three negative numbers
Original formula = - 1-1-1 + 1 = - 2
Four negative numbers
The original formula = - 1-1-1 = - 4
So the set is {4,2,0, - 2, - 4}

They are preparing food and drink for the party

They are preparing the foods and drinks for the party

Simplify (A-2 + A's negative quadratic) divided by (A-A's negative quadratic)

A ^ 2-2 + A ^ - 2 = (A-A ^ - 1) ^ 2 complete square formula
A ^ 2-A ^ - 2 = (A-A ^ - 1) (a + A ^ - 1) square difference formula
(a^2-2+a^-2)/(a^2-a^-2)=(a-a^-1)^2/(a-a^-1)(a+a^-1)
=(a-a^-1)/(a+a^-1)=(a^2-1)/(a^2+1)