1.7x〈2x-3 2.44x+1〉2-x

1.7x〈2x-3 2.44x+1〉2-x

x1/45

p20;
5 square centimeter = [] square decimeter
5cm = [] cubic decimeter
100 cc = [] l
] m3 = 5800 liters
25.15 L = [] ml
] cubic meter = 205 cubic decimeter =] liter
858 cubic decimeter = [] liter = [] ml
] cubic meter = 58 cubic decimeter =] cubic centimeter
p22
6.3 L = [] ml
700 ml = [] l
5.04 cubic decimeter = [] liter = [] ml
1950 CC = [] ml = [] l
4.5L = [] cubic decimeter = [] cubic centimeter
435 ml = [] cubic centimeter = [] cubic decimeter

5 square centimeter = [0.05] square decimeter 5 cubic centimeter = [0.005] cubic decimeter 100 cubic centimeter = [0.1] liter [5.8] cubic meter = 5800 liter 25.15 liter = [25150] milliliter [0.205] cubic meter = 205 cubic decimeter = [205] liter 858 cubic decimeter = [858] liter = [858000] milliliter [0.058] vertical

Grade 6 change unit "1" (Mathematics)
Number a is 1 / 5 of the sum of number B, number C and number d, number B is 2 / 7 of the sum of number a, number C and number d, and number C is 5 / 13 of the sum of number a, number B and number D. given that number d is 60, find the sum of number a, number B, number C and number D

A is 1 / 5 of the other three numbers, which can be regarded as a share, and the other three numbers are 5, a total of 6, and a is 1 / 6 of the total
B is 2 / 7 of the other 3 numbers, which can be regarded as B is 2, the other 3 numbers are 7, a total of 9, B is 2 / 9 of the total
C is 5 / 13 of the other 3 numbers, which can be regarded as C is 5, the other 3 numbers are 13, a total of 18, and C is 5 / 18 of the total
As a result, the number of children accounts for one third of the total
1-1/6-2/9-5/18=1/3
According to the meaning of the title, the number d is 60, so the total number is 60
60 △ 1 / 3 = 180, which is the sum of methyl, ethyl and butyl