Question 503544


{{{8/d=-12/30}}} Start with the given ratio



{{{8=(-12/30)*d}}} Multiply both sides by d



{{{8*30=-12*d}}} Multiply both sides by 30



{{{240=-12*d}}} Multiply



{{{240/-12=d}}} Divide both sides by -12



{{{-20=d}}} Reduce




So our answer is  {{{d=-20}}} 



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Thanks,


Jim