Judgment: the volume of a cuboid fish tank is 500 cubic decimeters, its volume is 500 liters

Judgment: the volume of a cuboid fish tank is 500 cubic decimeters, its volume is 500 liters

Not necessarily, because the fish tank is thick

How many 500ml mineral water bottles are needed to fill a 15L bucket with mineral water?

30

How many 500ml mineral water do you need to fill a 10 liter bucket with water?

500 ml = 0.5 L
10/0.5=20
A 10 liter bucket is filled with water, and 20 500ml mineral water are needed to separate

A bedroom, a bucket of mineral water 18.9 liters, six people drink four days, after a person back, these six people plus this person drink two days, how many people's weight is he? （　　）
A. 4B. 5C. 6D. 7

According to the meaning of the question, the average daily water consumption of the original six people is 18.94 × 6, then the daily water consumption of the new comer is 18.9x4 × 6, so we can get: 6 × 18.94 × 6 × 2 + 18.9x4 × 6 × 2 = 18.9, the solution is: x = 6, that is, one person is equal to the amount of six people

7 times of a number minus itself, the difference is 23.4. What's the number?

Subtracting 7 times of a number from itself leaves 7-1 = 6 times of the number
The number is 23.4 △ 6 = 3.9

Uncle Zhang has two cows and 10 pigs. If the quality of one cow is equal to that of five pigs, then the total quality of cattle and pigs is equal to that of pigs______ The quality of a cow, or equivalent______ The quality of a pig

10 × 15 = 2 (head), 2 + 2 = 4 (head); 2 × 5 = 10 (head), 10 + 10 = 20 (head); answer: the total mass of cattle and pigs is equivalent to the mass of 4 cattle, or equivalent to the mass of 20 pigs

Five seventh of a number minus 23, the difference is 33, the number is ()

392 out of 5

What is the quality of a bottle of mineral water?

That depends on the volume
The mass of 1ml water is 1g, calculate by yourself!
Now the volume of mineral water is 550ml, that is 550G

23.5 minus 9 times a number, the difference is 1
Equation solution (to be complete)

Let this number be X
23.5-9x=1
9x=23.5-1
9x=22.5
X = 22.5 divided by 9
x=2.5

Write a letter to your friend. Write an English composition about the supermarket

Recently the number of supermarkets is increasing at a past speed as more and more people accept this kind of store for them to buy goods.The reason why people like to go shoping in a supermarket inst...