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Nutka1998 [239]
3 years ago
10

A person-hour is a unit of measure representing one person working for one hour. A construction foreman estimates that it will t

ake 2880 person-hours to build a new library. If 12 workers are scheduled to work on the project at the same time how many hours will it take to complete the project?
Mathematics
1 answer:
aliya0001 [1]3 years ago
6 0
We need 2880 person-hours and we have 12 people.

When we divide the work between them: 2880/12 = 240 hours required to complete.
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Last month, Jennifer earned $143 for her after-school job. If she was paid $6.50 per hour, how many hours did Jennifer work?
Rudiy27

Answer:

22 hours.

Step-by-step explanation:

Using algebra:

<u>6.5x</u> = <u>143</u>

6.5      6.5

   x  = 22

6 0
3 years ago
How do you solve this ??
jok3333 [9.3K]
Hi there!

If the lines are parallel, Angles 1 and 2 would have to be congruent because they are corresponding angles. Therefore, to solve, all we need to do is set the values of the angles equal to each other because the angles are congruent.

WORK:
20 - 8x = 30 - 16x
-8x = 10 - 16x
8x = 10
x = 1.25

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
8 0
3 years ago
Solve for X, and show the equation you would use to solve.
Lady_Fox [76]

Opposite interior angles are equal, so

4x - 10 = 2x + 20

2x - 10 = 20

2x = 30

x = 15

6 0
3 years ago
Read 2 more answers
Consider the data set. 5,7,5,3,2,7,8,9,3,2 Which statement describes a way to find the median of the data set?
maksim [4K]

Answer:

C

Step-by-step explanation:

6 0
2 years ago
HELP ME PLEASE!! ASAP!!
Levart [38]
The total area is given by:
 A1 = (300) * (500)
 A1 = 150000 feet ^ 2
 The area occupied by 5 people is:
 A2 = (5) * (5)
 A2 = 25 feet ^ 2
 Then, we can make the following rule of three:
 5 --------> 25
 x --------> 150000
 Clearing x we have:
 x = (150000/25) * (5)
 x = 30000
 Answer:
 
D. 30,000 people
3 0
3 years ago
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