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Keith_Richards [23]
3 years ago
15

After batman brought the joker to justice , the crime rate in arkham city decreased by 12%. Previously the crime rate was c inci

dents per 1000 people
Mathematics
2 answers:
EastWind [94]3 years ago
4 0

Answer:

0.88c and 22/25 c

​

Step-by-step explanation:

Because 12\%12%12, percent means 121212 per hundred, we can write it in equivalent forms.

\begin{aligned} 12\%&=\dfrac{12}{100}\\\\ &=\dfrac{3}{25}\\\\ &=0.12 \end{aligned}  

12%

​    

=  

100

12

​  

=  

25

3

​  

=0.12

​

alexandr402 [8]3 years ago
3 0

Previous crime rate = c incidents per 1,000 people

Reduction in crime rate after batman brought the joker to justice = 12%

Hence, new crime rate (per 1,000 people) would be = c - 12%×c

⇒ New crime rate (per 1,000 people) would be = c - 0.12×c

⇒ New crime rate (per 1,000 people) would be = 0.88×c

Hence, now the crime rate is 0.88×c per 1,000 people.

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