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3 years ago

80% of what # is 16?

1 answer:

4 0

80% of x = 16
"of" translates to multiplication and 80% becomes 80/100.

80/100 × x = 16

0.8x = 16

0.8x/0.8 = 16/0.8

x = 16/0.8

x = 20

Your final answer is 80% of 20 is 16.

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3 years ago

What is the square root of 5 divided by the square root of 15 and simplify and in fraction form

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Answer:

$\sqrt{\frac{1}{3} }$

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Step-by-step explanation:

The expression $\frac{\sqrt{5} }{\sqrt{15} }$ can be simplified by first writing the fraction under one single radical instead of two.

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It becomes $\sqrt{\frac{5}{15} } = \sqrt{\frac{1}{3} }$

This can simplify further by breaking apart the radical.

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3 years ago

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