Astone fell from the top of a cliff into the ocean.
in the air, it had an average speed of 16 m/s in the water, it had an average speed
3m/s before hitting the seabed. the total distance from the top of the cliff to the seabed is 127 meters, and the stone's entire fall took
12 seconds.
how long did the stone fall in the air and how long did it fall in the water?

the stone fell in the air seconds and fell in the water for seconds.

yes yes yes yes yes yes yes yes yes

answer:

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.

1,2,4,5,10,11,20,22,44,55,110,220