A rectangular piece of land, with a ratio of length to width of 8 5, is 18 dens more than width. Wha

Analysis: The ratio of length and width is 8:5, which means that if there are 8 parts of length, there are the same 5 parts of width, that is, 8-5 = 3 parts more than the length of the width, and these 3 parts are 18 meters, so you can find out how much 1 part is, the length and width can be found, and the area can also be found.

Solution: 18 (8-5) = 6 (m).

Length: 8 6 = 48 (m) Width: 5 6 = 30 (m) Area: 48 30 = 1440 (m²).

Answer: Slightly.

8-5=3 (parts) 18 3=6 (m).

Length: 8 6 = 48 (m).

Width: 5 6 = 30 (m).

Area: 48 30 = 1440 ( ).

A: The area of the land is 1440.

Equation method: Solution: Set the length is 8x meters and the width is 5x meters.

8x-5x=18

3x=18x=6

Length: 8 6 = 48 (m) Width: 5 6 = 30 (m).

1. Ordinary methods.

18 (8-5) = 6 (m).

6*8=48 (m).

6*5=30 (m).

30*48=1440 (square meters).

2. Equation solution.

Solution: Set the length to be 8x meters and the width to be 5x meters.

8x-5x=18

The solution is x=68x*5x=8*6*5*6=1440 (square meters).

Solution: Set the width to be 5x and the length to be 8x

There are 8x-5x=18

The solution is x=6

So the area of the land = 48 * 30 = 1440 square meters.

The length is 18 holes, and the circle is 8, 5, 8, 48 meters.

The width is 18, 8, 5, 5, 30 meters.

48 30 1440 sq. m.

The area of this land is 1,440 square meters.

Long Billowing Sail Eggplant: 9 9 = 81 m.

Width: 9 7 = 63 meters.

The remaining area of the large car: 81 63 = 5103 square meters.

A rectangular piece of land, the ratio of long and rotten potatoes to width is 7:4, and the length is 15 meters wider than that, and the area of this land is how many square meters.

Length = 15 x 7 7-4) = 35 Width = 15 x 4 (7-4 ) 20 Area = 35x20 = 700 square meters.

Set the length of the good relatives to be 7x and the width to be 5x

7x-5x=14

x=7 so the length of the finch is 49 and the width is 35

Area talk socks early = 49 * 35 = 1715

24 (5-3) = 12 (m), 12 5 = 60 (m), 12 3 = 36 (m), 60 36 = 2160 (m²).

A: The area of this land is 2160 square meters

18 divided by (8--5) x8 = 48

The area of this rectangle = 48x30 = 1440 square meters.

Length A Width B

a：b=8：5

Side 5a=8b

a-b=18

Side a = 18 + b

Substitute the third line.

Side 5 * (18 + b) = 8b

90+5b=8b

90=8b-5b

side b = 30 side a = 48

The area will be counted by yourself ab=1440

There is another way.

Think of the sum of A and B as 10 parts.

a：b=8：5

Then A has more than B (8-5) = 3 copies.

3 servings = 18 per serving = 6

Then a=6*8=48

b=6*5=30

1. Length: width = 8:5, 8 parts long, 5 parts wide. The length is more than the width (8 5) parts. It's exactly 18m.

2. Length: 18 (8 5) 8=48 (m).

3. Width: 18 (8 5) 5=30 (m).

4. Area: 48 30 = 1440 (square meters).

The length is x

x:(x-18)=8:5

x=48 then the width is (48-18)=30 (meters).

The area is 48x30 = 1440 (square meters).