Acommunity hall is in the shape of a cuboid the hall is 40m long 15m high and 3m wide. 10 litre paint covers 25m squared costs ? 10. 1m squared floor tiles costs ? 3. work out the total costs of tiles and paints

Total cost for tiles and paints is $924.  

Step-by-step explanation:

We have been given that a community hall is in the shape of a cuboid. The hall is 40m long 15m high and 3m wide.

The paint will be required for 4 walls and ceiling.

Let us find area of walls and ceiling.

Therefore, the area of walls and ceiling is 1410 square meters.

Given: Cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. Therefore,  

Therefore, the total painting cost is $564.  

Tiles will be required for floor. Let us find the area of floor.

Given: 1m squared floor tiles costs $3. So,  

Therefore, the total tiles cost is $360.

Now let us find combined total cost of tiles and paint.

Therefore, the combined total cost of tiles and paint is $924.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225