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borishaifa [10]
3 years ago
6

Please help me with this work

Mathematics
1 answer:
Volgvan3 years ago
5 0

Answer:

120

Step-by-step explanation:

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como calcular la cantidad de horas por proyecto si un contratista tiene 5,000 horas-hombres y el costo es de $10 y $12 por proye
Tju [1.3M]

Answer:

Each project has 2.500 man-hours

Step-by-step explanation:

Available man hours: 5000

For two projects          Costs $

X: project A                     10

Y: project B                     12

Approach:

X + Y = 5000 => X = 5000 - Y

10 * X + 12 * Y = 55000

replacing:

10 * (5000 - Y) + 12 * Y = 55000

50000 - 10 * Y + 12 * Y = 55000

2 * Y = 55000 - 50000

Y = 5000/2

Y = 2500

For X:

X = 5000 - 2500

X = 2500

The number of hours available for each project are:

Projects Man            hours

X: project A              2500

Y: project B              2500

6 0
3 years ago
A farmer is fencing a 270 ft by 330 ft rectangular pasture. Posts are to be placed every 6 ft. how many posts are needed?
vazorg [7]
100 posts have to be placed
4 0
3 years ago
Read 2 more answers
What is 23/25 in decimal
Ainat [17]
0.92 you would simply divide 23 by 25
7 0
3 years ago
Read 2 more answers
What is the slope of y=7-3x
Anna [14]
The equation used above is y-intercept form. 

ex. y = mx + b

Whatever is in front of the x is your slope.

Your slope is -3
7 0
3 years ago
What’s the volume of the cone if the height is 7 cm and the base it 10 cm
pogonyaev

Answer:

23.3333333333...

Step-by-step explanation:

10 x 7 = 70

70/3 = 23.333333333...

5 0
3 years ago
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