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3 years ago

Multiplying fractions by whole numbers 7x4/8 equal

Mathematics

2 answers:

asambeis [7]3 years ago

3 0

28/8 or 7/2 is the answer to that

Anit [1.1K]3 years ago

3 0

To achieve this you need to make the whole number a fraction
To do this you simply put it over one
So 7/1x4/8
Then find common denominators
Then multiply
Then simplify into smallest form
You should get 7/2

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sveta [45]

Answer:

$\displaystyle n^3-\frac{1}{n^{2}}$

Step-by-step explanation:

<u>Exponents Properties</u>

We need to recall the following properties of exponents:

$(a^x)^y=(a^y)^x=a^{xy}$

$\displaystyle a^{-x}=\frac{1}{a^x}$

We are given the expression:

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We need to express the following expression in terms of n.

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It's necessary to modify the expression to use the given equivalence.

Recall $8=2^3 \text{ and }4 = 2^2$ . Thus:

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Applying the property:

$(2^m)^3-(2^m)^{-2}$

Substituting the given expression:

$n^3-n^{-2}$

Or, equivalently:

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Solve and find X. <br> Question says 5-x / 2 = 2x-7

poizon [28]

Answer:

x = 3.8

Step-by-step explanation:

The equation is (5 - x) / 2 = 2x - 7

Multiply both sides by 2:

5 - x = 4x - 14

Add 14 to both sides:

19 - x = 4x

Add x to both sides:

19 = 5x

Divide both sides by 5 to isolate x:

3.8 = x

Therefore, x = 3.8.

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