Mathematics: The length, breadth and height of a room are 4 m, 3 m and 7 m respectively. find the coast of white washing the walls of the room and the ceiling at the rate of $6 per m².

The length, breadth and height of a room are 4 m,

Ответ:

dudesenpai24

28.05.2020

Required area = lb + 2 × h ( l + b)
= 4 × 3 + 2 × 7 (4 + 3)
= 12 + 14 × 7 = 12 + 98 = 110 m²

Cost of white-washing at the rate of $6/m²
= $ 110 × 6 = $ 660

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Ответ:

spacehunter22

04.07.2021

Mathematics

Divide -3 to both sides and get 31 = v

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The length, breadth and height of a room are 4 m, 3 m and 7 m respectively. find the coast of white washing the walls of the room and the ceiling at the rate of $6 per m².

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