Tell the maest, masters!!!

10 divided by 2. 5 bottles.

5 bottles produce 5 empty bottles and 5 caps.

5 empty bottles can be exchanged for 2 bottles of wine, and there is one empty bottle left. 2 bottles. 1 empty bottle remaining.

5 caps can be exchanged for 1 bottle of wine, and there is 1 cap left. 1 bottle. 1 cap remaining.

In exchange for 3 bottles of wine, 3 empty bottles and 3 caps are produced.

3 empty bottles + 1 extra bottle can be exchanged for just 2 bottles of wine. 2 bottles.

3 caps + 1 cap left before is just enough to change 1 bottle of wine. 1 bottle.

In exchange for 3 bottles of wine, 3 empty bottles and 3 caps are produced.

3 empty bottles can be exchanged for 1 bottle of wine and one empty bottle remaining. 1 bottle of wine. 1 empty bottle remaining.

3 caps cannot be changed. 0...3 caps remaining.

1 bottle yields 1 empty bottle and 1 cap.

1 empty bottle + 1 empty bottle left before can be exchanged for 1 bottle of wine. 1 bottle of wine.

1 cap + the remaining 3 caps from before can be exchanged for 1 bottle of wine. 1 bottle of wine.

2 bottles of wine yielded 2 empty bottles and 2 caps.

2 empty bottles for 1 bottle of wine. 1 bottle of wine.

2. The bottle cap cannot be changed. 0

A bottle of wine produces 1 empty bottle and 1 cap, so there is 1 empty bottle and 3 caps left, and they can't be exchanged for wine, so if he finishes drinking, he can drink a total of them.

5+2+1+2+1+1+1+1+1+1=15 bottles of wine.

If the bottle can be mixed with the cap, 1 bottle and 2 caps can be exchanged for 1 bottle. 1 bottle of wine. 1 cap remaining.

1 bottle yields 1 empty bottle and 1 cap.

1 cap + 1 cap + 1 empty bottle left before can just be exchanged for a bottle of wine. 1 bottle of wine.

In this case, as long as he can drink it all, he can drink 15 + 1 + 1 + 17 bottles of wine for 10 yuan! Thank you.

20 bottles, empty bottles, 1 yuan, bottle caps, yuan, calculate it yourself.

The length of the DC is 2 tons, and the length of the AE is t

Angle c=90°, DFC=90°

So df=t

So df = ae

2.Because AE parallel is equal to df

So the quadrilateral AEFD is a parallelogram.

Because the parallelogram AEFD is diamond-shaped.

So ae=ad

Because c=30 degrees, b=90°, let ab=a, then ac=2a, the Pythagorean theorem gives a=5, ac=10

So t=10-2t

t=10/3

3.Use the Pythagorean theorem to find df ,de ,ef and then df +de =ef to find the value of t.

（1）∵∠c=30° df⊥bc

df=1/2dc

Yes Point E moves half as fast as point D.

ae=1/2dc

ae=df2).

then ad=ae

i.e. 10-2t=t

t=10/3

3) If def is a right triangle.

then de df, i.e., ae de, ae = 1 2ad

i.e. t = 1 2 (10-2t).

t=5/2

From 3, 6, 7 and 9 we get a multiple of 63.

From 4, 5 and 8 we get multiples of 40 and 9 more.

63*x=40*y+9

y=9*（7*x-1）/40

In order for the above equation to have an integer solution, the single digit of x must be 3 to approximate 10x=23 of 40, and y has an integer solution of 36, and the total number is 1449

Set up a drink x bottle.

x/4+x/2+10÷2=x

x=2010 yuan can drink 20 bottles.

That's right, take it.

If you can take credit, it's not 20

The words are too messy to read clearly, (or say it!) )