8,520 gallons of water begins to drain at a rate of 12 gallons per minute. which equation can be used to find the number of minutes, m, it will take for the pool to be half full?

The time taken to drain water to be half full is 5 hours 55 min .

Step-by-step explanation:

Given as :

The total quantity of water pool = 8520 gallons

The rate of water drain = 12 gallons per min

The time taken to drain water to be half full = t min

Now, According to question

Time of water drain =

Or, time =

Or, time = 710 minutes

So, The time taken to full empty the pool = 710 minutes

Again, time taken to ran water to half full =

Or, t = 355 minutes

So, time taken to drain water to be half full = t = 355 min = 5 hours 55 minutes

Hence, The time taken to drain water to be half full is 5 hours 55 min . Answer

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.

multiply then divide

step-by-step explanation: