Respuesta :
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.
The new crime rate is 0.88c.
And can be determined by w crime rate is defined as the subtract the previously the crime rate was c incidents per 1000 people from a decrease in percent of crime.
Given
After batman brought the joker to justice, the crime rate in Arkham city decreased by 12%.
Previously the crime rate was c incidents per 1000 people.
How to form the expression that models the problem?
New crime rate is defined as the subtract the previously the crime rate was c incidents per 1000 people from a decrease in percent of crime.
Previous crime rate = c incidents per 1,000 people;
Therefore,
The new crime rate is;
New crime rate = previously crime rate - decrease in crime percentage.
New crime rate = c - 12%c
New crime rate = c - 0.12c
New crime rate = 0.88c
Hence, the new crime rate is 0.88c.
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