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A carpenter has a wooden dowel that is 72 cm long. She wants to cut it into two pieces so that one piece is 7 times as long as the other. What is the length of the longer piece?

Respuesta :

Answer: 39.5 cm long

Step-by-step explanation: The equation can also be written s 72=2x+7, (x= length of short piece) (x+7+length of long piece.):

72=2x+7

72-7=2x

65=2x

x=32.5

Then to find out the long piece:

x+7

32.5+7=39.5

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