Do me a favor and say thank you

First of all, you have to know whether your memory is SD or DDR, and the easiest way is to remove the memory you are using and take it to the Science and Technology City to buy the same and stable

Copy the words and letters on your memory on a piece of paper and take it to the memory seller, and the memory seller will tell you what model you should use. (It is recommended that you buy a 512, DDR400 300 yuan lifetime warranty).

..To be clear, incompatibility will occur if the frequency is not the same, and it is recommended that you buy a memory module with the same frequency as the 256 you are currently using.

No set-up. Just buy a 256M one to add it, but you have to tell whether your memory is DDR or SDRAM!!

If you have any questions, you can ask me again

I also think it's better to buy a 512m paddled in case you want to go up again in the future? If you buy 256, buy the same memory as yours, otherwise it will be incompatible, and if you have SDRAM, it's not easy to buy.

It's better to buy a 512M one, and it won't be long before 1G memory will be popularized, so it's convenient to upgrade it later

Just do what you say upstairs.

Assuming a ballpoint pen **x and a notebook **y, you can list the following equation 4x+7y=

3x+8y=

Solving this equation will give you the answer.

You can multiply the second equation by four-thirds, subtract it from the first equation to calculate the value of y, and then substitute it for any equation to calculate the value of x.

It can be solved by a system of binary linear equations.

Solution: Set a ballpoint pen x yuan and an exercise book y yuan.

The system of equations can be listed by the title 4x+7y=

3x+8y=

4-3 gets 11y=

So y=substituting y= into 4x+

So x = A: A ballpoint pen.

Set: 1 ballpoint pen = x yuan; 1 exercise book = Y yuan.

4x+7y=

3x+8y=

x=yuany=yuan.

1 ballpoint pen element.

These are actually two questions.

According to the following: one, if you only use a right-angled triangle, then you must make one through point A, and then make one through point B.

If you have learned "A little beyond the straight line, lead the perpendicular line of the straight line". It's also two lines. - Then you must use a compass ruler, (you can't use the two right-angled sides of the right-angled triangle).

This topic is not the same as "Find a point in a straight line, and the sum of the distances to AB is the shortest". (That requires drawing a point of symmetry).

4 questions, the sum of edge lengths 5x12 = 60 cm, and the area of each face is 5x5 = 25 square centimeters.

Liulian: It is to describe the appearance of butterflies flying around and reluctant to leave Chacha: the meaning of frequent and continuous.

The frolicking butterflies are reluctant to roll and circulate and fly, and the free little yellow warbler calls harmoniously and movingly.

Spring City: refers to Chang'an, the capital city in the ridge of the spring cluster Imperial willow: refers to the willow trees in the imperial garden.

In the twilight of spring, Chang'an City is full of poplar flowers, and the east wind of the Cold Food Festival slanted the willow trees in the palace.

Green: Blowing Green When: When.

The spring breeze once again blew green on both sides of the south of the Yangtze River, when will the bright moon shine on me to return to my hometown?

Question 2: 3x10x5 can also be 15x2x5 Question 3: 7x100x6 can also be 700x3x2 glad to answer for you!