Sunflower1971 Sunflower1971
  • 07-11-2015
  • Mathematics
contestada

x squared plus y squared equals 80. My daughter has to work out what x and y are. I have worked it out by trial and error, but know there must be a method. Please help!

Respuesta :

Amberdiana Amberdiana
  • 07-11-2015


you Need to think of 2 square numbers that add up to make 80

answer:

64 + 16

this means that x  = 8 and y = 4

because of the square roots

or

y = 4

and

x = 8

Answer Link

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