eternalflame08 eternalflame08

24-10-2018
Mathematics

contestada

find two numbers that have the sum of 77.95 and a difference of 30.61

Respuesta :

24-10-2018

x+y=77.95
x-y=30.61

x+x+y-y=108.56
2x=108.56 (divide by 2 both sides of the equation)

x=54.2

y=77.95-x=77.95-54.2=23.67

y=23.67

answer: they are 54.2 and 23.67

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