It takes 500 pieces of square bricks with side length of 0.4dm to pave the floor of a classroom. If the square bricks with an area of 25 square decimeters are used to pave the floor, it will take more time Using equation
Suppose x blocks are needed,
25x=0.4*0.4*500
x=3.2
It costs four yuan
RELATED INFORMATIONS
- 1. To decorate a living room, it takes 500 pieces to pave the floor with 2 mm square bricks. How much does it take to pave the floor with 4 DM square bricks
- 2. Use square bricks to pave the floor of a classroom. If you use square bricks with a side length of 4 decimeters, you need 500. If you use square bricks with a side length of 5 decimeters to pave, how many square bricks do you need
- 3. The school meeting room needs to be paved with floor tiles. It needs 1600 pieces of 30 cm long square bricks. If it needs to be paved with 40 cm long square bricks, how many pieces?
- 4. How many bricks does it take to build a brick wall 15 meters long, 0.3 meters wide and 3 meters high with 1.5 decimeter long square bricks? Use the formula!
- 5. Guangming primary school built a brick wall with a length of 0.2m and a height of 2.6m with square bricks with a length of 2 decimeters. How much will it take
- 6. If you use a square brick with a side length of 2 decimeters to pave the floor, you need bricks. If you use a square brick with an area of 9 decimeters to pave the floor, how many bricks do you need? (use proportional solution) to have a percentage
- 7. How many small cubes do you need to make a big cube with the edge length of 1 decimeter?
- 8. There are two designs for Xiaoming's living room to be paved with floor tiles. (1) in the first design, 300 floor tiles are used to calculate the area of the kitchen, i.e. how many square meters and how many square meters? The first design is a square with 3 yuan each and 2 decimeters on each side
- 9. There are two design schemes for the floor tiles in xiaohongjia kitchen. The second scheme is 3 decimeters long and 2 decimeters wide. How many floor tiles does the second scheme need? How much yuan does it cost? There are two design schemes for Xiaohong's bathroom to be paved with floor tiles. The second scheme is rectangular, with the length of 3 decimeters and the width of 2 decimeters. How many floor tiles does the second scheme need? How many yuan? How to do it
- 10. There are two design schemes for the floor tiles in the toilet. Scheme 1: the floor tiles with a square side length of 2 decimeters are 8 yuan each Plan 2: rectangular floor tiles are 3 decimeters long and 2 decimeters wide. Each tile costs 6 yuan. The second plan uses 540 yuan to calculate the area of the toilet. Which design is cheaper?
- 11. In a small conference room, it needs 500 tiles with a side length of 4 decimeters. Now, how many tiles need to be paved with a side length of 5 decimeters? (solve by proportion)
- 12. To pave the floor tiles for a house, 960 pieces of 3 decimeter × 3 decimeter square bricks should be selected, and how many pieces of 4 decimeter × 4 decimeter square bricks should be selected? (solve by proportion)
- 13. There is a meeting room to be paved with floor tiles. If it is paved with 3-decimeter-long square bricks, 800 pieces are needed; if it is paved with 25-decimeter-square bricks, at least 800 pieces are needed How much is it
- 14. For a room, the floor tiles are 0.2m square and 0.3m square. The number of floor tiles required is 600 and 400 respectively?
- 15. Mingming's room is a rectangle with a length of 4 meters and a width of 3 meters. How many pieces of floor tiles do you need at least? one 1 1 2 decimeters 1 Right angle 1.1 2 decimeters My painting is not standard
- 16. Xiaohong's family bought a new house and prepared to use a kind of floor tile to inlay the floor of the new house. It requires that the floor tiles are regular polygons, and each side length of each floor tile is equal, and each corner is also equal. There are five types of floor tiles in a decoration material market, and the degrees of each corner are 60 °, 90 °, 108 °, 120 ° and 135 ° respectively. What do you think are suitable for these floor tiles? Please state your reasons
- 17. The school is going to pave the floor tile for the 8-meter-long and 5.2-meter-wide classroom with 0.4-meter-long square bricks. How many square bricks do you need?
- 18. The school needs 500 square bricks with a side length of 2 mm, and how many square bricks with a side length of 4 DM?
- 19. It takes 200 pieces to pave the floor with 30 cm long square bricks on one side. If you use 20 cm long square bricks on the other side, how many pieces do you need
- 20. It takes 200 pieces to pave the classroom with 15 cm long square bricks. If you use 25 cm long square bricks to pave the classroom, how many bricks do you need?