The meaning of 3 / 32 × 8 is( The meaning of 3 / 32 × 8 is () The meaning of 5 / 7 is ()

The meaning of 3 / 32 × 8 is( The meaning of 3 / 32 × 8 is () The meaning of 5 / 7 is ()


The meaning of 32 × 3 / 8 is (a number is 3 / 8 of 32)
5 / 7 of a number is 25



Judge whether the two scores of each group below are equal, and explain the reasons: 3 / 4 and 24 / 18, 32 / 28 and 8 / 7, 12 / 8 and 30 / 20
Judge whether the two scores of each group below are equal, and explain the reason
3 / 4 and 18 / 24, 28 / 32 and 7 / 8, 8 / 12 and 20 / 30, 3 / 5 and 10 / 15


3 / 4 equals 18 / 24, because 24 and 18 divided by 6 at the same time equals 4 and 3, 28 / 32 equals 7 / 8, because 32 and 28 divided by 4 at the same time equals 8 and 7, 8 / 12 equals 20 / 30, because 12 and 8 divided by 4 at the same time equals 3 and 2, 30 and 20 divided by 10 at the same time equals 3 and 2, 3 / 5 does not equal 10 / 15, because 5 and 3 multiplied by 3 equals 15 and 9 at the same time



Given that 8x-2y-3z = 0 and 5x + y-12z = 0, then the value of X: Y: Z


8x-2y-3z=0…… ①
5x+y-12z=0…… ②
① + 2 × 2
If 10x-27z = 0, we can get 10x = 27z, that is, x = 2.7z ③
① 4 - 2
27x-9y = 0, y = 3x ④
From ③ and ④, y = 8.1z
therefore
x:y:z=2.7z:8.1z:z=2.7:8.1:1



Three thirds of y plus five equals two thirds of Y minus one


3/2y+5=2/3y-1
3/2y-2/3y=-6
9/6y-4/6y=-6
5/6y=-6
y=-36/5



(2Y + 1) + (y + 1) greater than or equal to 2 / 7y-1


Y is less than or equal to 5



How does x * 2 + X (Y-1) - (2Y * 2-7y + 6) deform equal to (x + y + 2) (x + 2y-3)
How to deform x * 2 + X (Y-1) - (2Y * 2-7y + 6) is equal to (x + y + 2) (x + 2y-3)


The original formula = x & sup2; + xy-2y & sup2; - x + 7y-6
=(x+2y)(x-y)-x+7y-6
Multiplication by cross
x+2y -3
×
x-y 2
So the original formula = (x + 2y-3) (X-Y + 2)



What is y minus 1 / 2Y?


2Y / 2Y squared-1



Smiley face plus flower equals 38, smiley face minus flower equals 14, how much is smiley face equal to? How much is flower equal to?


Let X be the flower and y be the smiling face
x+y=38
x-y=14
The sum of the two formulas leads to
2x=52
You put in the first 26 x = 12



How much is a smiley face plus a flower = 38, how much is a smiley face minus a flower = 14, and how much is a flower?


Smile is 26, flower is 12



If a times 3 equals B times 5, then a is better than B () than () and a is ()


If a times 3 equals B times 5, then a is more than B = (5) than 3 (), a is (5 / 3) of B