Granny Li marinates pickles and puts 1kg salt into 10kg water. How much salt accounts for? How much water accounts for?

Granny Li marinates pickles and puts 1kg salt into 10kg water. How much salt accounts for? How much water accounts for?

1÷（10+1）=1/11 10÷（10+1）=10/11
A: salt accounts for one eleventh of salt water. Water accounts for eleven tenth of salt water

A + B = 60 B + C = 51 find C + a = 39 A =? B =? C =?

A = 24, B = 36, C = 15!

△+○=60，○+□=51，□+△=39，□=______ ．△=______ ，○=______ ．

The answer is: 15, 24, 36

The solution equation is: 5 / 2: x = 5 / 4:60 6.3 / 0.2 = x / 50.6: x = 15:1 12:14 = x: 6 / 1

(1)5/2:x=5/4:60(5/2)/x=(5/4)/60(5/4)x=(5/2)60x=120(2)6.3/0.2=x/5x =(6.3/0.2)5 = 6.3(3)0.6:x=15:10.6/x = 15/1x=0.6/15 =1/25(4)12:14=x:6/112/14=(x/6)/1x = 36/7

Solving equation x ^ 2 (x-1) (X-5) = - 12

The result is negative
X ^ 2 must be positive
(x-1) (X-5) is negative
So the range of X is definitely between 1 and 4
The integers are two and three. Try it
The result is x = 2

Solution equation: 1 / 5 * x + 60 = x-340

1/5*x+60=x-340
0.2x-x=-340-60
-0.8x=-400
x=-400÷(-0.8)
x=500

17x - (5.5 + 1.5) = 44 X: 4.875 = 4.5:2.25 18 / 7-1 / 3 x = 5 / 2 42-5x = 12

17x-(5.5+1.5)=44
17x-7=44
17x=44+7
17x=51
x=51÷17
x=3
x:4.875=4.5:2.25
2.25x=4.875×4.5
x=4.875×4.5÷2
x=9.75
18 / 7 - 1 / 3 x = 5 / 2
1 / 3 x = 18 / 7-5 / 2
1 / 3 x = 1 / 14
X = 1 / 14 ／ 1 / 3
X = 3 / 14
42-5x=12
5x=42-12
5x=30
x=30÷5
x=6

Solution equation: x + y = 5000 X / 10 + Y / 10 / 3 = 15 * 60

x+y=5000 (1)
x/10+y/10/3=15*60 (2)
From (2), x + 3Y = 9000 (3)
(3) (2) 2Y = 4000,
The solution is y = 2000
Substitute (1) to get x = 3000
The solution of the equations is x = 3000, y = 2000

X △ 7 = x △ 60-5 to solve the equation

60x=7x-2100
60x-7x=-2100
53x=-2100
x=-2100÷53
x=-2100/53

Solving equation 30% + 60% x = 2.7

30%+60%X=2.7
0.3x+0.6x=2.7
0.6x=2.4
x=2.4÷0.6
x=4