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Gennadij [26K]
3 years ago
8

Which is greater 81.9,81.90,81.900 or 81.91?

Mathematics
2 answers:
IgorLugansk [536]3 years ago
5 0
As long as there are no numbers after them the zeros on the right of the decimal don't matter (i.e. 6.3000000=6.3    3.00000=3)
So 81.9=81.90=81.900
Since three of them are the same number there is only one answer left (81.91)
Lelechka [254]3 years ago
4 0
Its 81.91 because you can add 0 s to the end of the other numbers and 1 is bigger than 0

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What value of x is the solution to the equation −3/2x−3/4=−1/5 ?
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Answer:

\Longrightarrow: \boxed{\sf{x=-\dfrac{11}{30} }}

Step-by-step explanation:

Isolate the term of x from one side of the equation.

<h3>-3/2x-3/4=-1/5</h3>

<u>First, add by 3/4 from both sides.</u>

\sf{-\dfrac{3}{2}x-\dfrac{3}{4}+\dfrac{3}{4}=-\dfrac{1}{5}+\dfrac{3}{4} }

<u>Solve.</u>

⇒ = -3/2x=11/20

<u>Then, you multiply by 2 from both sides.</u>

2(-3/2x)=11*2/20

<u>Solve.</u>

11*2/20

11*2=22

22/20

<u>Common factor of 2.</u>

11/10

-3x=11/10

<u>Divide by -3 from both sides.</u>

\sf{\dfrac{-3x}{-3}=\dfrac{\dfrac{11}{10}}{-3}}

<u>Solve.</u>

\Longrightarrow:\boxed{\sf{x=-\dfrac{11}{30} }}

  • <u>Therefore, the correct answer is D. x=-11/30.</u>

I hope this helps! Let me know if you have any questions.

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3 years ago
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bixtya [17]

Answer:

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8 0
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y varies inversely with x, and k (the constant of variation) = 23. What is the value of y when x = 7? Round to the nearest tenth
Natasha2012 [34]
Hello!

<span>The constant of variation is xy. XY=23. If X=7 then Y=23/7.
</span>
So as we can see, the stated inverse variation can be represented as the equation y = k/x. ===> k = 23 & x = 7 ⇒ y = 23/7. <====

I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)

(Ps. Mark As Brainliest IF Helped!)
8 0
3 years ago
Britney building dollhouse that was a scale model of her own house the dog House was 10 inches long while her actual house had a
defon

9514 1404 393

Answer:

  32 feet

Step-by-step explanation:

The width of the doll house is 8/10 of the length of the doll house, so the actual house will have a width that is 8/10 of its length:

  (8/10)(40 ft) = 32 ft

The actual house is 32 feet wide.

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Answer:

y = + 1x - 4y

Step-by-step explanation:

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