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yKpoI14uk [10]
3 years ago
10

It takes 1 hour for 1 worker to clean an area that is 20 feet by 30 feet. How many workers are needed to clean 18,400 square fee

t in 8 hours?
Mathematics
1 answer:
Lina20 [59]3 years ago
3 0

Answer:

4 workers

Step-by-step explanation:

20 ft x 30 ft = 600 sq ft per worker per hour x 8 hours = 4800 sq ft per worker

18,400 sq ft divided by 4800 = 3.83 so 4 workers

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a school debate team has 4 girls and 6 boys. a total of 4 of the team members will be chosen to participate in the district deba
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The correct question is:
What is the probability that 2 girls and 2 boys will be selected?

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Match each expression written in standard form to the equivalent expression in factored form
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Answer:

1. 15x^7y^2 + 4x^3 => x^3(15x^4y^2 + 4)

2. 15x^7y^2 + 3x => 3x(5x^6y^2 + 1)

3. 15x^7y^2 + 6xy => 3xy(5x^6y + 2)

4. 15x^7 + 10y^2 => 5(3x^7 + 2y^2)

Step-by-step explanation:

To obtain the answer to the question, first let us factorise each expression. This is illustrated below:

1. 15x^7y^2 + 4x^3

Common factor is x^3, therefore the expression is written as:

x^3(15x^4y^2 + 4)

2. 15x^7y^2 + 3x

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3. 15x^7y^2 + 6xy

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4. 15x^7 + 10y^2

Common factor is 5, therefore the expression can be written as:

5(3x^7 + 2y^2)

4 0
4 years ago
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