A store received $823 from the sale of 5 tape recorders and 7 radios. If the receipts from the tape recorders exceeded the receipts from the radios by $137, what was the cost of a tape recorder?
$49
$68
$84
$96

Question

A store received $823 from the sale of 5 tape recorders and 7 radios.  If the receipts from the tape recorders exceeded the receipts from the radios by $137, what was the cost of a tape recorder?  
    $49  
   $68  
   $84  
   $96

anonymous · Answer

let tape recorders cost x and radios cost y
5x + 7y = 823
5x - 7y = 137
therefore 10x = 960
x = 96
The tape recorder costs $ 96

anonymous · Answer

thanks darling your amazing (: