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27-03-2017
Mathematics

contestada

Find two numbers whose product is 91 and whose sum is 20

Respuesta :

27-03-2017

x+y=20 and x*y=91
x=20-y then (20-y)*y=91
by solving the equation with one unknown, we get either:
y=7 and x=13
or
y=13 and x=7

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