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masonorourke
30.07.2019 •
Mathematics
3.6m by 1.8 m wall how many 6 cm by 6 cm pictures could fit on the wall?
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Ответ:
1800 pictures could fit on the wall.
Step-by-step explanation:
If the area of a space is given as A and this space is to be filled by pictures of area A' then number of pictures will be =![\frac{A}{A'}](/tpl/images/0151/2404/d09bf.png)
Now we know area of wall is A and area of picture is A'.
Length and width of wall = 3.6×1.8 m
So area of the wall A = 3.6×1.8 = 6.48 m²
Dimensions of one picture = 6×6 cm Or 0.06×0.06 m
So are of one picture A' = 0.0036 m²
Therefore, Number of pictures on the wall =
= ![\frac{6.48}{0.0036}=1800](/tpl/images/0151/2404/35688.png)
Number of pictures required to cover the wall = 1800
Ответ: