sarahjacobs3702 sarahjacobs3702
  • 14-01-2019
  • Mathematics
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If y=12 when x=15 find x when y=21

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Andy0416
Andy0416 Andy0416
  • 14-01-2019
y=12+9=21
x=15+9=24
Thus,x=24 when y=21.
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