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Lostsunrise [7]
3 years ago
6

A man can paint one house in 12 hours. At this rate, how many houses could 18 men paint in 6 hours

Mathematics
2 answers:
OverLord2011 [107]3 years ago
8 0

Answer:

i want to say 36, im not 100% sure though

Step-by-step explanation:


Leni [432]3 years ago
3 0

Answer:

9 houses in 6 hours painted by 18 men.

Step-by-step explanation:

1. you have 1 man, 12 hours = 1 house.

2. take that number of men, and times it by 18. 18 houses in 12 hours!

3. take those houses and hours, and split them both in half.


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d = 3 , a₁₂ = 40 and Sx_{100} = 7775

In an arithmetic sequence the nth term and sum to n terms are

<h3>• an = a₁ + (n-1)d</h3><h3>• S_n = \frac{n}{2}[2a + (n-1)d]</h3><h3>where d is the common difference</h3><h3>a₆ = a₁ + 5d = 22 ⇒ 7 + 5d = 22 ⇒ 5d = 15 ⇔ d = 3</h3><h3>a₁₂ = 7 + 11d = 7 +( 11× 3) = 7 + 33 = 40</h3><h3>S₁₀₀ = \frac{50}{2}[(2×7) +(99×3)</h3><h3>       = 25(14 + 297) = 25(311)= 7775</h3>
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