olalekana642 olalekana642

09-11-2020
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contestada

How many tiles, each 30 cm
will be needed for floors with the following
dimensions:
* 6 m by 4.2 m

Respuesta :

zarampa zarampa

12-11-2020

Answer:

8400 tiles

Explanation:

Note: "each 30 cm" must be "each 30 cm²"

then

1 m = 100cm

1m² = 100cm * 100cm = 10000cm²

30 cm³ = 30/10000 = 0.003m²

each tile = 0.003m²

Total área:

6m * 4.2m = 25.2m²

then:

25.2m² / 0.003m² = 8400

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