How many decimeters is a nanometer 300 L = () CC 50 cubic mm = () l = () l 0.5m3 = () cm3 = () cm3 10 hours = () minutes = () seconds 900 seconds = () minutes 0.4 hours = () minutes = () seconds 150 minutes = () hours = () seconds

300 L = (300000) CC
50 cm3 = (0.05) ml = (5 * 10 ^ - 5) l
0.5m3 = (500) cm3 = (500000) cm3
10 hours = (600) minutes = (36000) seconds
900 seconds = (15) minutes
4 hours = (24) minutes = (1440) seconds
150 minutes = (2.5) hours = (9000) seconds

All the formulas of the applied problems of the equation of one degree with one variable
Just like V static - V water = V inverse work efficiency and X time = total work
In this way

What formula is there for practical problems
The key is to see the meaning of the question clearly, and then list the equations
As for solving the equation, it's very easy
There's no need to remember this formula. You can certainly understand it. The questions you don't understand will definitely tell you the formula. Don't worry about it. It's not the math test

It takes 4 hours for Party A and Party B to complete the work, and 5 hours for Party B and Party C. After 2 hours for Party A and Party C, Party B has 6 hours to complete the work. How many hours does it take for Party B to complete the work himself

The rate is a x b y c Z, 4x + 4Y = 1, 5Y + 5Z = 1, 2x + 2Z + 6y = 1. The solution is x = 13 / 60, y = 30 / 1, z = 6 / 1, so it takes 30 days

If the crude oil temperature (unit: ℃) is f (x) = 13x3 − x2 + 8 (0 ≤ x ≤ 5), the minimum value of the instantaneous change rate of the crude oil temperature is ()
A. 8B. 203C. -1D. -8

When f ′ (x) = x2-2x = (x-1) 2-1 ∵ 0 ≤ x ≤ 5 ∵ x = 1, the minimum value of F ′ (x) is - 1, that is, the minimum value of instantaneous rate of change of crude oil temperature is - 1, so C

Summary of the first six units of PEP English seventh grade volume I
To mark the unit, good will give more points

Do you have a book?
Every unit has a "grammar focus", which is about the main sentence patterns of this unit
(unit 1: P2)
Unit 2: P8
Unit 3: P14
Unit 4: P20
Unit 5: P26
Unit 6: P32)
Words are the words in the word list!

There are 1 red ball, 3 white balls and 5 yellow balls in the bag, each of which is the same except for the color. If you feel any ball, what's the value of P (feel the white ball)?

P (touch the white ball) = 3 / (1 + 3 + 5) = 1 / 3

How many square meters is 360 million square kilometers

360 billion square meters

Idioms for loud voice
Idioms with names of human organs
Slightly ()
words whose meaning is similar
consult
world-famous
Water mountain
Love and meaning
Tigers are as fierce as monkeys are
Hardness is to diamond what () is to sponge
() to () as () to ()
() to () as () to ()

Idiom for loud voice: deafening
Idioms with the names of human organs: to be outstanding, to be sincere, to be able to hear and see,
Slightly (quiver)
words whose meaning is similar
Consultation consultation
World famous
(thousand) water (ten thousand) mountain
(Lang) Qing (Qie) Yi
The tiger is as fierce as the monkey is clever
Hardness is to diamond what softness is to sponge
(strong) to (elephant) as (weak) to (ANT)
(broad) to (SEA) as (narrow) to (stream)

In order to complete the assembly task of a batch of high-definition TVs, the TV factory found that if it assembled 12 more TVs per hour in the future, it would take 55 hours to complete, but 45 fewer TVs would be installed in the last hour. If it was still assembled according to the original efficiency, it would take 3 hours more. How many TVs would be assembled per hour?

If x sets are assembled per hour, then
（55+3）x=55（x+12）-45
58x=55x+660-45
3x=615
x=205
It used to be 205 units per hour

3000 cm = () m; 1 liter = () ml = () CC; 500 cubic decimeter = () m3; 70000 cubic centimeter = () cubic decimeter

The answers are
thirty
1000 1000
zero point five
seven

How many decimeters is a nanometer 300 L = () CC 50 cubic mm = () l = () l 0.5m3 = () cm3 = () cm3 10 hours = () minutes = () seconds 900 seconds = () minutes 0.4 hours = () minutes = () seconds 150 minutes = () hours = () seconds