Final Review Materials Urgent Urgent 50

Divide a 2-meter-long wire into 5 equal sections, each accounting for one-fifth of the wire, and each segment is (m) long

A 2-meter-long wire is evenly divided into 5 sections, and each section of the lead roll accounts for (1 5) of the wire, and each section is long ( ).

Is this the whole thing about your question?

Xiao Ming finished reading a book in 8 days, and every day he read 1 9 more pages of the book, how many pages is there in this book?

If that's the case, then, here's how to solve it:

If the book has x pages, then.

1/9）*x+2】*8=x

Solution x=144

A: The book is 144 pages long.

what do you mean by what you are talking about .

'I read this book every day and there are 2 more pages'What does it mean, can you write a detailed point, what is the space in the middle.

If the empty is 1 9, the answer is 144, if it is 1 10, the answer is 80

A cuboid is 5 decimeters long, 4 decimeters wide and 4 decimeters high, and in this cuboid there are (8) ribs with a length of 4 decimeters.

The area is 20 square decimeters, and there are (4) surfaces.

Question 1: —2

Question 2: (1/2, positive infinity).

Question 3: (—1,3).

Question 4: (—3,2).

5 questions: —56 questions: (—2, positive infinity).

Question 7: (—2,3).

8 questions: —19 questions: greater than; Less than; Greater than.

-2x>1/2

y∈（-3,2）

5 [-2, positive infinity) (the symbol can't be typed and changed by itself) (-2, 3) -1

The area of the circle is r 2

So the area ratio is 5 2 to 3 2 25 to 9

It is known that the area of the second largest circle is 64, and according to the area formula of the circle, we can get the radius r, 64 = r 2

r=8 The ratio of the three circles is 3 to 4 to 5

Then the radius of the first circle is 6

The radius of the third circle is 10

The area of the largest circle is reduced by the area of the smallest circle.

The smallest is 3 and the largest is 5 (radius).