Please, it s really not in a hurry! 10

Yuan per kilogram.

Answer: Suppose the student brought z yuan and bought three yuan per kilogram and two yuan per kilogram of apples for x and y kilograms, then there is.

z 2=3x, z 2=2y gives x=z 6, y=z 4 and the average price of apples =z x+y substitutes x and y into the form z, giving z 12 5 z = 12 5 5

per kilogram.

Set a total of x yuan. then three yuan apples (x 2) 3 catties; Binary apples (x 2) 2 pounds.

The average ** is: x yuan [(x 2) 3 + (x 2) 2] jin = yuan jin.

If a three-dollar apple uses half of the money, and a two-dollar apple uses half of the money, then the number of apples for a three-dollar apple is 2 3 for a two-dollar apple.

Let the number of apples in ternary be x and the number of apples in two-yuan be y.

3x=2yTotal amount of money = 3x+2yTotal number of apples =x+yAverage price = (3x+2y) divided by (x+y)=2 4

3 kg of apples bought Y catty, 2 kg bought Z catty, a total of x yuan.

3y+2z=x

3y=2z to find x y+z?

x/y+z=（sy+2z)/y+z=2+y/y+z=2+(2/3z)/(5/3z)=

Suppose there is 2x yuan, 2x*(x*3+x*2)=yuan.

stands for the division sign.

The night of the Mid-Autumn Festival is a beautiful and peaceful night. Families gather together to taste mooncakes and melons and fruits, and enjoy the joy of family. "Prepare for the Mid-Autumn Festival", everyone hopes to be able to reunite with the whole family during the Mid-Autumn Festival, which is human nature, but it is always impossible for the family to get their wish.

My dad is a TV journalist, and because he is busy with work, he can't spend several Mid-Autumn Festivals with us. Thinking of this, I can't help but think of Su Shi's "Water Tune Song Head": "I hope that people will last a long time, and they will be together for thousands of miles."

Today is the 15th day of the eighth month of the lunar calendar, and it is the annual Mid-Autumn Festival. In the evening, my mother and I went back to my grandmother's house for the holidays. After the reunion dinner, I went to the rooftop with my brother to admire the moon.

The moon shyly covered itself with layers of veils, and it took a long time to gently lift its veil, gradually revealing its glowing face. I looked up at the moon carefully, and my heart was filled with infinite reverie for the distant moonlit sky...

The younger brother looked at the bright moon in the sky, turned his face sideways and asked playfully, "Sister, is this a ** plate?" I felt angry and funny when I heard this, he must have remembered the ancient poem "Gu Lang Yue Xing" I taught him, and he was deliberately showing off.

So, we recited aloud to the moon: "When you don't know the moon, call it a white jade plate." and suspicious Yaotai mirror, flying in the blue clouds.

The two of us chatted and ate mooncakes with relish, including five-kernel, lotus seed paste, and barbecued pork ......My favorite is still the double yellow, take a bite, it's sweet, and it tastes great!

Time flies, and in a blink of an eye, it is already late at night, and we have to reluctantly go home. I wonder what the Mid-Autumn Festival will be like next year?

Looking forward to the stars and the moon, I finally look forward to the Mid-Autumn Festival on August 15th!

Today is the day of family reunion, and we went back to my grandmother's house early in the morning. The family was lively, and relatives rushed back from other places. Mom and aunt were cooking, Dad was chatting with my uncles in the living room, and the bedroom was a place of entertainment for my brothers and me.

In the evening, everyone sat in front of the window, and the round moon slowly rose from the east. Gradually, the moon hung high like a big disk, spreading the soft moonlight to the earth, and also spreading happiness to each of us, what a beautiful scene! I can't help but think of Li Bai's poem:

The bright moonlight in front of the bed is suspected to be frost on the ground. "We looked at the moon and ate moon cakes, and we were reunited, so good!

The moon hung in the deep blue sky, and her round figure was like a silver-white jade plate. Looking from afar, it is really a "lonely moon wheel in the bright sky".

On the night of the Mid-Autumn Festival, I spent a happy Mid-Autumn Festival under the vast moonlight.

I thought to myself that there would be a moon on the night of the Mid-Autumn Festival, so I walked out the door and looked out, and I was very happy.

I saw that the moon was hanging in the dark blue sky, and her round figure was like a silver-white jade plate. From a distance, the moon looks very lonely, it is really a "lonely moon wheel in the bright sky". If you look closely, you'll see a tiny star or two winkling at me next to her.

A dark cloud drifted slowly in the light wind, as if whispering to the moon, blocking half of her body, and the remaining afterglow sprinkled onto the path, on the house, on the grass ......After a while, the whole face of the moon was revealed again.

When I entered the house, I saw the reflection of the moon in the basin full of water, and it was really a bright moon in the sky, and there was also a bright moon in the basin, and the light of the moon sprinkled the afterglow through the transparent glass window, and at this time, the basin added another beauty.

Walking into the living room, the whole family is eating moon cakes while watching TV, and they are happy, my mother is knocking melon seeds, my father is watching TV with Erlang's legs crossed, and my grandparents are tasting moon cakes. I couldn't control my cravings, so I picked up a mooncake and stuffed it into my mouth, it was delicious, it was ham-flavored, wow! There are also ...... flavored with bean paste, lotus paste, and egg yolk on the tableI couldn't help but admire, it was so delicious, and the whole family looked at me and smiled.

The moon during the Mid-Autumn Festival is so beautiful! The mooncakes of the Mid-Autumn Festival are so delicious! What a happy night of the Mid-Autumn Festival!

The 15th day of the eighth month of the lunar calendar is the traditional Chinese festival --- the Mid-Autumn Festival, on which every household gathers together with joy to eat moon cakes and admire the moon.

Every year during the Mid-Autumn Festival, our family will gather at my grandmother's house to celebrate the Mid-Autumn Festival, early this morning we all put on new clothes and prepare to go to my grandmother's house, before we go to Guixinyuan Cake Shop to buy moon cakes, wow! There are so many mooncakes in the store! There are big and small ones, with different patterns and different shapes, which are so beautiful that I drool.

When I finally arrived at my grandmother's house, I immediately told my grandmother as soon as I got out of the car; "Happy Mid-Autumn Festival! "Grandma was very happy to see us come and prepared a hearty meal for us early, with meat, fish, crab ......It's all what we like to eat, and the strong festive atmosphere fills every corner of the house. At this time, the adults chatted and drank, and the children ate, drank and laughed, which was really lively!

The sky is getting darker, my father said that the fifteenth day of the lunar calendar is the night of the full moon, so I can't wait to sit in the courtyard with a stool to admire the moon, looking up at the sky, a bright moon hanging in the sky, looking at the moon that looks like a white jade plate, I can't help but think of Li Bai's poems: I don't know the moon when I am young, and I call it a white jade plate. What a charming scene, the Mid-Autumn Festival is a festival of reunion, this full moon night the whole family sit around to enjoy the moon, how beautiful!

I'm so happy this Mid-Autumn Festival!

You may have copied the wrong question.

You're right.

I don't see it very clearly, is this three arithmetic problem?

After the time t is solved, B stops the bureau quickly. v0 = vb-va = 20m s t = vo a = 80s vot-1 2at square = 1600-200 = 1400mSo the socks will hit Chang Jing.

Solution: (1) Let y=kx+b, and substitute x=20, y=360, and x=25, y=210 to obtain: {20k+b=360 25k+b=210

The solution is: k = -30, b = 960, then y = -30 x + 960 (16 x 32).

2) Monthly profit p=(-30x+960)(x-16)=30(-x+32)(x-16).

30（-x2+48x-512）

30（x-24）2+1920．

So when x=24, p has a maximum value, and the maximum value is 1920 Answer: When ** is 24 yuan, the maximum profit can be obtained every month, and the maximum profit is 1920 yuan