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Mariulka [41]
3 years ago
15

Math: There are 30 pages in a chapter of your textbook. You read 40%, how many pages do you have left to read? Explain how to so

lve this using 2 different methods
Mathematics
2 answers:
irina [24]3 years ago
5 0

Answer:

18 pages left

Way 1: Find what 40% of 30 is and subtracting it from 30, leaving 60% of 30 left:

40% of 30 is 0.4*30 = 12, 30 - 12 = 18

Way 2:  Subtract 40% from 100% and multiply it by 30: 100% - 40% = 1 - 0.4 = .6, 0.6*30 = 18

Solnce55 [7]3 years ago
4 0
12 pages to read left.
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We know that :

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The Empire State Building, the Sears Tower, the Canadian National Tower - each of these structures was the tallest in the world at the time they were (Option D) built.

<h3>What is sentence correction?</h3>

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Now,

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4 0
2 years ago
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MA_775_DIABLO [31]

Step-by-step explanation:

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\sqrt{x + 2}

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So we get

\frac{ \sqrt{x + h + 2} -  \sqrt{x + 2}  }{h}

Multiply both equations by the conjugate.

\frac{ \sqrt{x + h + 2} -  \sqrt{x + 2}  }{h}  \times  \frac{ \sqrt{x + h + 2} +  \sqrt{x + 2}  }{ \sqrt{x + h + 2} +  \sqrt{x + 2}  }  =  \frac{x + h + 2 - (x + 2)}{h \sqrt{x +  h + 2} +  \sqrt{x + 2}  }

\frac{h}{h \sqrt{x + h + 2}  +  \sqrt{x + 2} }

\frac{1}{ \sqrt{x + h + 2}  +  \sqrt{x + 2} }

Since h is very small, get rid of h.

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\frac{1}{2 \sqrt{x} }

So

\frac{d}{dx} (  \sqrt{x}  + 2) =  \frac{1}{2 \sqrt{x} }

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Answer:

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