Question

a number decreased by 23% becomes 539.find the number

Answer 1

Lets call the number x

decreased means subtraction.  If x is decreased bt 23% then the result is

x-23%(x)  =  x-(23/100)x    or x-.23x

 

 

x-.23x=539

.77x=539

x=539/.77

x=700

 

check:  700-.23(700)=539

            700-161=539

            539=539

Answer 2

Answer:Lets call the number x

decreased means subtraction.  If x is decreased bt 23% then the result is

x-23%(x)  =  x-(23/100)x    or x-.23x

 

 

x-.23x=539

.77x=539

x=539/.77

x=700

 

check:  700-.23(700)=539

            700-161=539

            539=539

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