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Mandarinka [93]
3 years ago
14

Please Help!!!!!!! I am very confused. Can someone explain?

Mathematics
1 answer:
pentagon [3]3 years ago
6 0

Answer:

1/6a-1/6, a=1

Step-by-step explanation:

Hey there! I can definitely explain :)

-2/3a+5/6a-1/6

Multiply the two terms (the first two), to have common denominators!

The common lowest (easiest to deal with) denominator is 18. So, multiply the first term (-2/3a) by 6/6 and the second term (5/6a) by 3/3!

-12/18a+15/18a-1/6

Now, add those together!

3/18a-1/6

Now simplify!

1/6a-1/6

If you want, you can solve for a!

1/6a=1/6

a=1

Hope this helps! Please mark brainliest :)

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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
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Answer:

Each project has 2.500 man-hours

Step-by-step explanation:

Available man hours: 5000

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X: project A                     10

Y: project B                     12

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

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The number of hours available for each project are:

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Y: project B              2500

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Have a great day :)

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