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Lynna [10]
2 years ago
11

A contractor decides that he can build a barn in nine weeks using four men. If he employs two more men, how long will the job ta

ke? Assume that all the men work at the same rate.
Mathematics
1 answer:
alina1380 [7]2 years ago
8 0

Answer: 6weeks

Step-by-step explanation:

If it takes 4 men, 9 weeks to build a barn.

It will take a man; 4 x 9weeks =36 weeks to make a barn

If it takes a man 36weeks to make a barn, it will take 4men + 2 men i.e 6men = 36/6

6 weeks to make a barn

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The term congruent is often used to describe figures like this, the pictire below. if you look up congruent shapes and look at many examples that will definitely help you understand alot more better what congruent means.

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