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Ethen Nolan
Mathematics
9 February, 10:15
What is the answer?
xy = 30
and x + y = 18
+4
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1
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Salma Barron
9 February, 10:17
0
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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