P183724252 P183724252

23-07-2018
Mathematics

contestada

What is the answer?
xy = 30
and x + y = 18

Respuesta :

Аноним Аноним

23-07-2018

from second equation y = 18-x so:-

x(18 - x) = 30

x^2 - 18x + 30 = 0

x = 16.14, 1.86

when x = 16.14 y = 18-16.14 = 1.86

when x = 1.86, y = 16.14

so one variable = 16.14 and the other = 1.86 Answer

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