You ask a neighbor to water a sickly plant while you are on vacation. without water the plant will die with probability 0.7. with water it will die with probability 0.6. you are 86 % certain the neighbor will remember to water the plant.

So the plant without water has a 0.6 chance of living. with water has a 0.7, so a 0.1 increase of chance if the neighbor comes.

the probability that the neighbor to water the plant is of 0.86.

Then the probability of the plant to live is 0.6 + 0.1*0.86 = 0.686.

So the plant have a 68.6% probability to live

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step-by-step explanation:

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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.