The selling price of a refrigerator, is 459.90 if the markup is 5% of the dealers cost, what is the dealers cost of the refrigerator

 $438.00

Step-by-step explanation:

                                        1 x + 5% of x =  $459.90

                                          1 x + 0.05 (x ) = 459.9  

                                [ (1.00) (x)  + (0.05) (x ) ] = 459.9

                                             (1.05 ) x =   459.9        

                                [ 1.05 / 1.05  (x) ] =  459.9 / 1.05          

         [ 1.05 / 1.05 ] = 1 x                                  1 x =  [ 459.9 / 1.05 ]

                                              x = 438.00    

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step-by-step explanation: