ortegamario3002 ortegamario3002

06-03-2021
Mathematics

contestada

If x + y = 13 and xy = 40, then x and y = *

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jesusm1 jesusm1

06-03-2021

Answer:

rearrange: y=13-x
xy=40 --> x(13-x)=40
13x-x^2=40
x=8 and y= 5

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