If a store sells a batch of clothes at 150 yuan each, it can make a profit of 25%. The cost price of this kind of clothes is calculated. Suppose the cost price of this kind of clothes is x yuan, then the equation () A. x=150×25%B. 25%×x=150C. 150−xx=25%D. 150-x=25%

If a store sells a batch of clothes at 150 yuan each, it can make a profit of 25%. The cost price of this kind of clothes is calculated. Suppose the cost price of this kind of clothes is x yuan, then the equation () A. x=150×25%B. 25%×x=150C. 150−xx=25%D. 150-x=25%

Suppose the cost price of this kind of clothing is x yuan, then according to the profit = selling price cost price, we can get the equation: 150-x = 25% X; that is 150 − XX = 25%, so we choose C

After a certain kind of clothing in a store increases its price by 40% and sells at a discount of 20% (that is, 80% of the price), it still makes a profit of 25 yuan per piece. How much is the cost of this kind of clothing? (Note: don't use the equation!)

（1+40%）×80%-1
=112%-1
=12%
Cost: 25 △ 12% ≈ 208.3 yuan

A store sells a batch of clothes at 150 yuan per piece, which can make a profit of 25%
Please use fractional equation to solve it
It's best to be able to write relational expressions

Cost X, X (1 + 25%) = 150, x = 120

The cost of a commodity is 10 yuan, the price is 200 yuan, what's the profit?
What's the profit?

It depends on what profit margin you calculate
1. If the gross profit rate of sales = (200-10) / 200 * 100% = 95%, that is, gross profit = 200 * 95% = 190
2. If the cost gross profit rate = (200-10) / 10 * 100% = 1900%, that is, gross profit = 10 * 1900% = 190

78,90,80,72,75100,85,80110,40 who is the median and who is the mean

Line up first
40,72,75,78,80,80,85,90,100,110
The median is the average of the middle two numbers
The median is (80 + 80) △ 2 = 80
You should be able to calculate the average. The sum of all numbers divided by the number of numbers is the average~~

The average of 80, 85, 85, 90, 95100 is ()?

89

21 28,33,42,43,60
What's next

45
Do range 7 5 9 1 17 (- 15)
-2 4 -8 16 （-32)

Find the rules: ① 21, ② 24, ③ 28, ④ 33, ⑤ 39, ⑥ 46 How to express the nth number?
(given a group of numbers, what's the rule when the difference values are equal?)

The latter minus the former: 3,4,5,6,7
That is, a (n + 1) - an = n + 2
a2-a1=3
a3-a2=4
..
an-a(n-1)=n+1
Add the above formulas: an-a1 = (3 + N + 1) (n-1) / 2
That is, an = 21 + (n + 4) (n-1) / 2

What should be filled in the brackets
It's 5 9 21 ()
10 14 （ ） 23
These two lines are in the same table.

5 9 21 18 10 14 26 23, obviously, 9-5 = 4114-10 = 4, so it should be a cycle of four numbers. 21-9 = 12, so the number filled in the second space is 14 + 12 = 26, 23-26 = - 3, so the number difference between 21 and the first space is 3, so it is 18

As shown in the figure, there are six different squares. Fill in nine zeros with 1-9 natural numbers to make the sum of four vertices of each square equal

According to the meaning of the title: