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yuradex [85]
4 years ago
8

Which rational number equals 0 point 5 with bar over 5? (1 point)

Mathematics
1 answer:
pychu [463]4 years ago
5 0

Answer:

\frac{5}{9}

Step-by-step explanation:

The bar over the 5 means that 5 is recurring, that is

O.5555....

We require 2 equations with the repeating value after the decimal point

let x = 0.5555... → (1) ( multiply both sides by 10 )

10x = 5.555... → (2)

Subtract (1) from (2) thus eliminating the repeating decimal, that is

9x = 5 ( divide both sides by 9 )

x = \frac{5}{9} ← rational number

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6^2/2(3)+4= what is the answer
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6^2/2(3)+4
Follow the order of operations, (GEMDAS) which goes like this:
<em>grouping, exponents, multiplication/divison, addition/subtraction
</em>
First up is our grouping, specifically parentheses. While we do have parentheses in our expression there isn't anything going on <em>inside</em> of them that we'd have to do first. (The 2(3) is another way of writing 2×3.)

Next we have exponents, which would be our 6^2. (6 squared)
When something is squared, that means it is multiplied by itself. 6^2 = 6×6 = 36.

Now our expression is 36/2(3)+4.

Next we need to handle the multiplication and division. (order doesn't matter)
The best way to do this is from left to right. The 36/2 = 18...
Then 18(3) = 54.
If we took 36(3) then divided by 2 we would get the same answer.
However, what you <em>cannot</em> do is multiply the 2(3), simply because the 2 is a denominator of a fraction. If you don't know what this is or why, it's okay--just always do it left to right and you'll never have to worry about it.

Now our expression is 54+4.

Finally, we can handle the addition/subtraction. 54+4 leaves us with 58.
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3 years ago
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Find the sum of one thousand and forty-two, sixty-nine and five hundred and thirty-six.
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Answer:

1042

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Step-by-step explanation:

> one thousand = 1000 (thousandth place)

0 = hundred place

and fourty-two = 42 (tenths)

1042

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sixty-nine = 69 (tenth place)

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36 ( tenths)

146

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Step-by-step explanation:

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