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3 years ago

Which fraction when converted is a repeating decimal A. 3/8 B 11/25 C 2/5 D 5/7

Mathematics

2 answers:

Ray Of Light [21]3 years ago

4 0

Answer:

D

Step-by-step explanation:

3/8 = 0.375 so that is not the answer we would eliminate that answer
11/25 = 0.44 so we would eliminate that answer too
C and D are left
2/5 = 0.4 which we would eliminate
so that means D would be our answer because 5/7 = 0.714285714
which is a repeated decimal

Hope this helps
Hope this is right
Ask me more repeated decimal questions
And have a nice day

Elena-2011 [213]3 years ago

4 0

Answer:

I assume it's B because it's the closest thing to a recapeating fraction.

Step-by-step explanation:

3/8 ,to get the decimal divide the numerator by the denominator.

Ans = 0.375

Same concept as A.

11 divide by 25

Ans = 0.44

Ans = 0.4

Ans = 0.714285714

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Determine whether set of values represents an inverse variation. If yes, identify the constant of variation and write an inverse

Natasha_Volkova [10]

SOLUTION

If the table represents an inverse variation, it means that y is inversely proportional to x, written as

$\begin{gathered} y\propto\frac{1}{x} \\ \propto is\text{ a sign of proportionality } \end{gathered}$

Removing the proportionality sign and introducing a constant k, we have

$\begin{gathered} y=k\times\frac{1}{x} \\ y=\frac{k}{x} \end{gathered}$

In the first column, we have x = -4 and y = 3.5. Substituting these values for x and y, we have

$\begin{gathered} y=\frac{k}{x} \\ 3.5=\frac{k}{-4} \\ k=3.5\times-4 \\ k=-14 \end{gathered}$

So, if it's an inverse variation, the relationship would be

$y=\frac{-14}{x}$

In the second column, x = -2 and y = 7.

Now lets substitute the value of x for -2. If we get y to be 7, then the relationship is an inverse variation

We have

$\begin{gathered} y=\frac{-14}{x} \\ y=\frac{-14}{-2} \\ y=7 \end{gathered}$

Since we got y = 7, the relationship is therefore an inverse variation.

The constant k = -14

The equation for the inverse variation is

$y=\frac{-14}{x}$

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1 year ago

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Answer:

Step-by-step explanation:

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Answer:

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Natali5045456 [20]

Answer:

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