Reshardprimas12 Reshardprimas12
  • 17-02-2018
  • Mathematics
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a 21 inch board is to be cut into three pieces so that the second piece is twice as long as the first piece and the third piece is 4 times as long as the first piece if x represents the length of the first piece find the lengths of all three pieces what is the length of the first piece ?

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laurawinter1p43zv5 laurawinter1p43zv5
  • 17-02-2018
x + 2x + 4x = 21

7x = 21

x = 3
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