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Ivenika [448]
3 years ago
8

12 is what percent of 18; 24; 30; 48?

Mathematics
1 answer:
IrinaVladis [17]3 years ago
5 0

Step-by-step explanation:

12/18=2/3

2/3×100%=66.67%

12/24=1/2

1/2×100%=50%

12/30=2/5

2/5×100%=40%

12/48=1/4

1/4×100%=25%

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Sergei estimated 149% of 67 by performing the following steps. Which statement is true?
enot [183]

Answer: Last option.

Step-by-step explanation:

In order to estimate the percent "n" of a number"x", you need easy numbers to work with, therefore you can round  "n" and "x" up or down; but it is important to remember that this estimation does not give you an exact value.

You can observe that Sergei's first step was to round 149% and 67 up, getting this result:

=105

To verify if this estimate is less or greater than the actual answer, we can find the actual answer. This is:

\frac{67*149}{100}=99.83

Therefore, we can conclude that<em> the estimate is greater than the actual answer because the percent and the number were both rounded up</em>.

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3 years ago
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Use the list method to write "The perfect square integers between 1 and 80 inclusive".
oksian1 [2.3K]

ANSWER

{1, 4, 9, 16, 25, 36, 49, 64}

EXPLANATION

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The square of the next number does not fall within the given range.

Therefore "The perfect square integers between 1 and 80 inclusive" are

{1, 4, 9, 16, 25, 36, 49, 64}

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maxonik [38]

Answer:

It should be 10 raised to power 2 which is a hundred.

4 0
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This is already in simplest form and cannot be simplified any more. I hope that this helped! Good luck! :)
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