Question

How many 20-cm by 20-cm tiles are needed to cover a floor area of 40 sq m

Answer 1

20cm = 0.2m, right?
so, area of 1 tile is 0.2^2 m^2= 0.04m^2
and you need 40m^2 ---> the number of tiles is 40/0.04

Answer 2

is it 10 tile, 100 tiles, 1000tiles 10000 tiles

Answer 3

1000

Answer 4

please explain

Answer 5

explain what? \(\dfrac{40}{0.04}=1000\)

Answer 6

converty 20 cm into m, then multiply solve from there to find the equivalent to 40.

Answer 7

how many grams are there in 6 kilograms