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labwork [276]
3 years ago
5

What is 1.21 repeating as a fraction?

Mathematics
2 answers:
DochEvi [55]3 years ago
6 0
x=1.\overline{21}\\
100x=121.\overline{21}\\
100x-x=121.\overline{21}-1.\overline{21}\\
99x=120\\
x=\dfrac{120}{99}=\dfrac{40}{33}
Dmitrij [34]3 years ago
4 0

Answer: 1.\bar{21}=\frac{40}{33}

Step-by-step explanation:

Since we have given that

1.\bar{21}

Let x = 1.\bar{21} --------------(1)

Multiplying by 100 on both the sides:

100x=121.\bar{21}---------------(2)

Subtracting (1) from (2), we get,

100x-x=121.\bar{21}-1.\bar{21}\\\\99x=120\\\\x=\frac{120}{99}\\\\x=\frac{40}{33}

Hence, 1.\bar{21}=\frac{40}{33}

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Answer:

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Step-by-step explanation:

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First factor the top equation ….

= 3xy(3xy + x - 2y - 4)/3xy

If the top and the bottom both carry 3xy, you can cancel out both of them leaving you with ….

= 3xy + x - 2y - 4

= -16c^6d^6 + 64c^5d^7 - 24c^3d^8/-8c^3d^4

First factor the top equation ....

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If the top and the bottom both carry -8c^3 you can cancel out both of them leaving you with ….

= <u>d^6</u>(2c^3-8c^2d+3d^2)/d^4

Apply the exponent rule with d^6 ....

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cancel out d^4 ....

= d^2(2c^3-8c^2d+3d^2)

8 0
2 years ago
The area of the rug is 36 1/4 square feet the rug is 8 3/4. what is the length of the rug?
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conver to imrpoer
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145=35 times x
divide both sides by 35
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3 years ago
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Jobisdone [24]
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3 years ago
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Answer:

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x° is 37° + 72°, due to exterior angle property.

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3 0
3 years ago
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MaRussiya [10]

Answer:

x = 2.25 or any number greater

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