Actually, you expend far more calories than this! The calculation above assumes that we humans are 100% efficient at doing work. This is far from true...we use less than 25% of food calories to do mechanical work. In other words, for every ten joules of energy we take in from food, we can do 2.5 joules of work and 7.5 joules becomes heat. Given this 25% efficiency, how many pushups and knee bends would you have to do to burn 1 food calorie

0.84 dang lotta people are looking for this lol or if you round up its 1 but the overall answer to that is 0.84

step-by-step explanation:

60%

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.