The length of the two wires is 33 meters in total. The first wire takes 2 / 3, the second 12 meters, and the remaining length of the second wire is 1 / 2 of the remaining length of the first wire?

The total length of the two wires is 33 meters. The first wire is 23 meters, the second wire is 12 meters, and the remaining length of the second wire is 12 meters of the remaining length of the first wire?

If the first one is x meters long, then the second one is 33-x meters long, we can get: 12 × (1-23) x = 33-x-12 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 12 × 13X = 21-x & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & 76x = 21 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 18.33-18 = 15 (meters) a: the first one is 18 meters long, and the second one is 15 meters long

For two wires of the same length, the first one is 6.5 meters, the second one is 0.9 meters, and the second one is three times as long as the first one?

The length of the wire is x M
3*（x-6.5）=x-0.9
x=9.3

There are two iron wires, one is 10.8 meters long and the other is 7.2 meters long. After using the same amount of sections for both, the remaining length of the short one is 25% of the length. How many meters is the length of each section?

The long one is (10.8-7.2) / (1-25%) = 4.8m
10.8-4.8 = 6M

For two wires of the same length, the first one takes 1 / 5 and the second one takes 1 / 5 of a meter. At this time, the remaining lengths are equal. How many meters are the two wires in total

1 / 5 is equal to 1 / 5 meter
1 / 5 △ 1 / 5 = 1m
Total length: 1 + 1 = 2m
It turns out that the two wires are 2 meters long

There are two iron wires. The length of the first one is three times that of the second one. If the first one subtracts 18 meters, the rest will be as long as the second one. How long is the first one?

Let the second one be x meters long
3x-18=x
2x=18
x=9
3 * 9 = 27m
So the first one is 27 meters long

The length of a is 1.2 times that of B. If a minus 2.6 meters, the two wires are the same length. How many meters is the original length of a? (solution of equations)

Let B be x m long and a be 1.2x long
1.2x-2.6=x
0.2x=2.6
x=13
The length of nail is 1.2x = 1.2x13 = 15.6m
The length of the nail is 15.6 meters

(1) The first wire is 4 / 7 meters long, the second wire is 2 / 7 meters long, and the length of the first wire is () times that of the second wire
(1) The first wire is 4 / 7m long and the second wire is 2 / 7m long
(2) The area of a flower bed is 4 / 5 square meters, of which 1 / 6 square meters are planted with chrysanthemum. How much of the area of chrysanthemum is in the flower bed?
(3) Divide the 5 / 6 meter wire into two sections, each section is () meters long
(4) Four apples weigh 1 / 4 kg, with an average weight of () kg
(5) Vegetable market shipped 900 grams of vegetables, accounting for 1 / 3 of the vegetables shipped, vegetable market shipped () kg of vegetables
(6) The total expenditure of Xiaohong's family last month was 2000 yuan, of which food expenses accounted for 2 / 5 of the total expenditure, and the rest spent () yuan
(7) The toy factory produces 450 toys per month, which is 5 / 9 of the total monthly output
(8) Two thirds of a basket of peaches weighs 60 kg, and this basket weighs () kg
(9) A rectangular flower bed is 7 / 8 meters wide and 38 / 7 meters long
(10) Last month, the clothing factory produced 20000 pieces of women's clothing, 4 / 5 of men's clothing
(11) After eating part of a bag of bread, there are 20 kg left, just 4 / 5 of the bag's flour, which is () kg
(12) Xiao Ming has done 20 oral arithmetic, accounting for 4 / 5 of all the questions
(13) The revenue of a software company last year was 1.2 million yuan, of which the revenue in the first half was 3 / 5 of that in the second half, and the revenue in the first half was () million yuan
(14) There are 20 female students in class 6 (1), 8 of whom are rated as "three good" students, accounting for 1 / 6 of the class
(15) Xiao Chen has a deposit of 1200 yuan, which is 4 / 5 of Xiao Lin's deposit
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Tip: () / () refers to——
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2；5/24；5/12;1/16;2700;1200;810;90;304/49;2.5;25;25;75;48;2700

Cut a 1997 decimeter long wire into 199 decimeter and 177 decimeter long wires. How many decimeters is the rest at least?
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Suppose that there are x and Y wires of two lengths respectively, and the remaining Z meters
199x+177y+z=1997
x=2,y=9,z=6
At this time, the shortest part of the rest is 6 meters (calculation, you first calculate x, the maximum is 10, and then from 10 down, you can calculate when x = 2, y = 9, the shortest part of the rest

One third of the total length of a wire is used, and there are 12 meters left. How long is the wire?

12/(1-1/3)
=12/(2/3)
=12*3/2
=18 (m)
A: the wire used to be 18 meters long

The length of the two wires is 33 meters in total. The first wire takes 2 / 3, the second 12 meters, and the remaining length of the second wire is 1 / 2 of the remaining length of the first wire?