How to set up the equation of X + 3 / 5 times x = 8

X + 3x / 5 = 8 multiply by 5
5X+3X=40
8X=40
X=5

How to solve the equation of 4.6 times 11 / 8 plus 8.4 divided by 8 / 11 minus 11 / 8 times 5?

There are no unknowns

To solve the equation: X △ 7 + 3 × 0.9 = 4 and 3 (0.72-x + 1) = 4.8 write on paper

Solving the equation x (x + 1) = 72 I know it's 9,

x(x+1)=72
x²+x-72=0
(x-8)(x+9)=0
X-8 = 0 or x + 9 = 0
Get x = 8 or x = - 9

How to distinguish the singular from the plural in the number of German nouns

1. Through article: in German, the article of all plural nouns is die
2. Through the word itself:
1) Vowels (..): a few masculine, neutral nouns and two feminine nouns (mutter, tochter);
2) Add suffix e (- E): most masculine and neutral nouns;
3) Change vowel and add suffix e (.. E): a few masculine and feminine nouns;
4) Add suffix Er (- er): a few neutral nouns;
5) Change vowel and add suffix Er (.. ER): a few masculine and neutral nouns;
6) Add suffix en (- EN): most negative nouns and a few positive and neutral nouns;
7) Add suffix n (- n): negative nouns ending with - E, - El, - er and positive and neutral nouns ending with - E;

Simplification: 1 (x + 1) (x + 2) + 1 (x + 2) (x + 3) + 1 (x + 3) (x + 4) + 1 (x + 4) (x + 5)

The original formula is: 1 x + 1-1 x + 2 + 1 x + 2-1 x + 3 + 1 x + 3-1 x + 4 + 1 x + 4-1 x + 5 = 1 x + 1-1 x + 5 = 4 x 2 + 6 x + 5;

Is a bit of followed by a countable noun or an uncountable noun

A bit of can only be followed by uncountable nouns
If followed by a countable noun, use a fee or fee
For example: a bit of water (uncountable)
A few apples (countable)
Feed apples (countable)
We can't say a bit of apples

A rectangle with a circumference of 24cm, if a square with a side length of 1cm is cut out from its four corners, the circumference of the remaining figure is () cm

24cm, this question may mislead you, you may think it is 16cm, but please note that when you subtract 8cm, you also add 8cm, so it is 24cm

Write an English short passage about food that you and your family like

My families and I are like eating apples.Because apples can prevent all kinds of diseases and make ushave full abdomen move.The cancer research center of America special advise that people often eat apple to prevent cancer,because the abundant phytochemical natural antioxidants of it can effectively remove free radicals, reduce the incidence rate of cancer.

It is known that point C is on line AB, and points m and N are the midpoint of AC and BC respectively. (1) if line AC = 6cm and BC = 4cm, find the length of line Mn
(2) If AB = a, find the length of Mn
(2) If we change "point C on line AB" to "what's the change of the result above point C on line AB?" we can find the length of Mn

(1) M is the midpoint of AC = = > MC = 1 / 2 * AC
N is the midpoint of BC = = > CN = 1 / 2 * BC
∴ MN = MC+CN
=1/2(AC+BC)
=1/2*(6+4) =5(cm)
(2) According to the derivation of (1)
MN = 1/2(AC+BC)
=1/2*AB = a/2
(3) If C is at any position on AB line
C is between AB, which has been deduced previously. Assuming that C is on the outside of point B, then
M is the midpoint of AC = = > MC = 1 / 2 * AC
N is the midpoint of BC = = > NC = 1 / 2 * BC
MN = 1/2(AC-BC)
=1/2*AB
In the same way, when C is on the left side of a, there is a difference
MN =1/2 *AB
Therefore, for any point C on the AB line, Mn = 1 / 2 * ab
If AB = a, then Mn = 1 / 2 * a

How to set up the equation of X + 3 / 5 times x = 8