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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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3 years ago
Biologists tagged 139 fish in a lake on January 1, On February 1, they returned and collected a random sample
Bogdan [553]

Answer:

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4 0
3 years ago
What is the area of this figure?? PLEASE HELP
diamong [38]

Answer:

1410ft²

Step-by-step explanation:

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8 0
2 years ago
The length of a rectangle is 3 feet less than twice the width of the rectangle. If the perimeter of the rectangle is 264 feet, f
Digiron [165]

L = 2w - 3

p = 264

2(L + w) = p

2(2w - 3 + w) = 264

2(3w - 3) = 264

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7 0
3 years ago
Read 2 more answers
Write a rule describing the results when one multiplies three positive and negative decimals and changes the order of multiplica
anygoal [31]

Answer:

2 positive * 1 negative = negative

2 negative * 1 positive = positive

Step-by-step explanation:


one positive and 2 negative

(+ * -) * - =

positive times negative = negative * negative = positive

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now if we change the order by putting parenthesis

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negative time negative = positive

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the result is positive


The result does not change because of where we put the parentheses.


- * + * + =

negative  times positive = negative

negative * positive= negative

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The order does not matter

6 0
3 years ago
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