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Lera25 [3.4K]
3 years ago
9

In January the students in a class red 72 books in February they read 56 books what is the approximate percentage decrease in th

e number of books read from January to February
Mathematics
1 answer:
snow_lady [41]3 years ago
5 0

Answer: -12.5%

72 + 56 = 128

72 x / 128 x 100 = 56.25

56 / 128 x 100 = 43.75

43.75 - 56.25 = - 12.5

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masha68 [24]
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Please simplify this fraction c:
Liula [17]
F you just want to see the really short way, just skip down to AAAAAAAAAAAA

so, here is the long explanation
exponential properties
x^{-m}= \frac{1}{x^m}

don't forget pemdas
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so
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AAAAAAAAAAAAAAAAAAAAAAAA
so we see
the original equatio is
\frac{2x^{-4}}{3xy}

remember
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so we can seperate the constants
\frac{ab}{cd} =( \frac{2}{3})( \frac{x^{-4}}{xy})

we know that the placeholders cannot affet the position of the constants unless they are grouped together which they are not

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the only one that hsa that is A


ANSWER IS A
3 0
3 years ago
Read 2 more answers
What is the value of x in the figure ?
morpeh [17]

Step-by-step explanation:

2x+15= 145°

( vertically opposite angles)

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x = 65

3 0
3 years ago
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Answer:

the answer is letter D

Step-by-step explanation:

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