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Ipatiy [6.2K]
3 years ago
14

A ceiling 6 feet by 7 feet can be painted for $52. find the cost of painting a ceiling 18 feet by 21 feet, all things being equa

l except the dimensions
Mathematics
1 answer:
kykrilka [37]3 years ago
5 0
6 feet * 7 feet = 42 feet²

18 feet * 21 feet = 378 feet²

42 feet²  was painted for $52

1 feet²  will be painted for $52/42

378 feet² will then be painted for:  ($52/42) * 378

                                                       = $468

Hence 18 feet by 21 feet will be painted for $468

Hope this helps.
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olga_2 [115]

The percentage of the area inside the square that is shaded is 55%.

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