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11Alexandr11 [23.1K]
3 years ago
8

A quantity decreases from 35 to 30 ? What is the percent change ?

Mathematics
2 answers:
Lady bird [3.3K]3 years ago
8 0

Answer:

percentage change=14.29%

Step-by-step explanation:

<em>Original</em><em> </em><em>amount</em><em>=</em><em>3</em><em>5</em>

<em>Decreased</em><em> </em><em>amount</em><em>=</em><em>3</em><em>0</em>

<em>change</em><em> </em><em>in</em><em> </em><em>amount</em><em>=</em><em>5</em>

<em>cha</em><em>n</em><em>g</em><em>e</em><em> </em><em>in</em><em> </em><em>%</em><em>=</em><em> </em><em>5</em><em>*</em><em>1</em><em>0</em><em>0</em><em>/</em><em>3</em><em>5</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>5</em><em>0</em><em>0</em><em>/</em><em>3</em><em>5</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>1</em><em>4</em><em>.</em><em>2</em><em>9</em><em>%</em><em> </em><em>approx</em>

yuradex [85]3 years ago
7 0

Answer:

14.28%

Step-by-step explanation:

1) you have many different formulas for % change the one i'm using is :

n\frac{n-o}{o} =\frac{-x}{100\\}

n= new quantity

o=old quantity

-x= % change(since the quantity decreases the numerator will be negative)

so

\frac{30-35}{35} =\frac{-x}{100}

30-35=-5

\frac{-5}{35} =\frac{-x}{100}

cross multiply:

-500=-35x

divide on both sides:

14.285=x

hope this helps!

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