2 years ago

Five more than a certain number is 4 less than one-half that number. what is the number.

Mathematics

2 answers:

podryga [215]2 years ago

7 0

Answer:

i think the answer is 8

hope this helps

Andreyy892 years ago

3 0

The answer should be 8

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Rewrite the expression as a sum of terms, where each term is in the form k\cdot a^nk⋅a

muminat

Answer:

$2a^{\frac{5}{2}}-4a^{-\frac{1}{2}}$

Step-by-step explanation:

It looks like you want to expand the expression ...

$\sqrt{a}\left(2a^2 -\dfrac{4}{a}\right)$

Use the distributive property and rules of exponents.

$=2a^{(\frac{1}{2}+2)}-4a^{(\frac{1}{2}-1)}\\\\=\boxed{2a^{\frac{5}{2}}-4a^{-\frac{1}{2}}}$

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The relevant rules of exponents are ...

√a = a^(1/2)

1/a = a^-1

(a^b)(a^c) = a^(b+c)

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A larger interval is wider than a smaller interval.

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mamaluj [8]

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3 years ago

Sales tax on an item directly proportional to the cost of the items purchased. If the tax on a $400 item is $24, what is the sal

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