On a new construction site, an electrician can install a new light fixture in 20 minutes. A project calls for 24 new fixtures to be installed on each of 4 floors. If a work day is 8 hours, how many work days will it take two electricians to complete the installations?

Answers

Answer 1

Answer: 20 minutes per fixture.
24 fixtures per floor. = 20*24 = 480 minutes per floor
4 floors. = 1920 minutes total.
1920 minutes = 32 hours (divide by 60)

32 hours/2 electritians = 16 hours per person
16 hours per person/8 hours per work day = 2 work days.

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(6x10^6) / (2x10^3) solve?

Answers

Answer:

3x^999000

Explantiotn

Please 20 points I need it fast

Answers

Answer: irrational numbers

Step-by-step explanation:

because i had the same test

Which of the following numbers can be expressed as repeating decimals?2 over 9, 3 over 8, 5 over 6, 5 over 4

3 over 8 and 5 over 6
2 over 9 and 5 over 6
2 over 9 and 5 over 4
3 over 8 and 5 over 4

Answers

the correct answer is 2 over 9 and 5 over 6

Answer:

2/9 and 5/6

Step-by-step explanation:

divide all the fractions numerator and denominator

and find if the number that is found is repeating

if both fractions are then that is the answer

six girls and four boys have entered the science fair. first, second, and third place awards are to be given out. what is the probability that exactly one girl and two boys will recite awards? express your answer as a percent

Answers

The probability that exactly one girl and two boys will recite awards is 10%.

Probability

Given:

6 girls +4 boys

Hence:

Probability of a girl getting the first place =6/10

Probability of a boy getting the second place=4/9

Probability of a boy getting the third place=3/8

Total probability:

Total probability=6/10×4/9×3/8

Total probability=0.1×100

Total probability=10%

Therefore the probability that exactly one girl and two boys will recite awards is 10%.

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Answer:

10%

Step-by-step explanation:

was right on edge

An angle measuring (870n)° is in standard position. For which value of n will the terminal side fall along the positive portion of the y-axis?

Answers

An angle measuring (870n)° is in standard position.The value of n in which the terminal side falls along the positive portion of the y-axis would be 1. This is because the reference angle would fall on the second quadrant, which still denotes a positive portion of the y-axis.

Answer: n=3

Step-by-step explanation: took on edg

Radius of a circle with diameter 240mm

Answers

The radius of the circle with the given diameter would be = 120mm.

What is the diameter of the circle?

The diameter of the circle is defined as a line segment that passes through the center of a circle and has two endpoints at the circumference.

The radius is defined as the distance from the centre of a circle to any point on the boundary. The radius:

= Diameter/2

Therefore, the radius of the circle = 240/2 = 120mm

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okay so since we are using diameter the formula for this would be 1/4pie times diameter squared
geting our answer 45,216

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