mhaqq04 mhaqq04
  • 11-01-2018
  • Mathematics
contestada

Kaitlyn had 12a+21 marbles. she gave one third of the marbles to her friend john. how many marbles does she have left

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csteenson006
csteenson006 csteenson006
  • 11-01-2018
33a is the answer cause 12+21=33 and you add the variable
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toporc
toporc toporc
  • 11-01-2018
She has two thirds of the marbles left after giving one third of them to John. The amount of marbles she has left is found from:
[tex]\frac{2}{3}(12a+21)=8a+14[/tex]
The answer is: 8a + 14 marbles.
Answer Link

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