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Sav [38]
3 years ago
13

the only black pens and green pens in a box the ratio of a number of black pens in the box to the number of green pens in the bo

x is to 5 what fraction of pens are black
Mathematics
1 answer:
eduard3 years ago
4 0

Fraction of black pens = 2/ (2 + 5)  = 2/7  answer

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Answer:  see below

<u>Step-by-step explanation:</u>

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t_n=\dfrac{t_{n-1}}{10}+1

t₁ = 10

t₂ = 10/10 + 1    = 2

t₃ = 2/10 + 1     = 1.2

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t₅ = 1.12/10 + 1  = 1.112

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2)  10, 2, -2, -4, -5, -5.5, ...

t_n=\dfrac{t_{n-1}}{2}-3

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Olegator [25]

Answer:

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Step-by-step explanation:

The area covered by the furniture can be subtracted from the total area of the room to calculate the area of the gray region.

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Area of gray region = 13x^2+7x-2-(5x^2-x+5)

Remember to distribute the negative sign:

Area of gray region = 13x^2+7x-2-5x^2+x-5

Combine like terms:

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Step-by-step explanation:

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The first answer is not a stop. The first answer (A) is correct. I hope this helps!
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