Students are working on problems where they convert distances measured in miles to kilometers. To estimate the number of kilometers, Tony takes the number of miles, doubles it, then subtracts 20% of the result. Zia first divides the number of miles by 5, then multiplies the result by 8. Do these two methods give the same results? Explain why or why not.

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

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.

493 would be the correct answer

step-by-step explanation:

step-by-step explanation: