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astra-53 [7]
3 years ago
9

Proport

Mathematics
2 answers:
larisa [96]3 years ago
6 0

Answer:

5.25, 5/14, or 21/4 hours

Step-by-step explanation:

400        700

------  =    ------

 3             x

Gwar [14]3 years ago
4 0
It takes 5 minutes per square foot (400/180=5) and so 5 minutes per square for 720 squares: 720x5=3,600. 3,600 minutes is equivalent to 60 hours so it takes him 60 hours.
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Step-by-step explanation:

 

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3 years ago
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Step-by-step explanation:

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