deeClariaMarisejad deeClariaMarisejad
  • 21-05-2017
  • Mathematics
contestada

The sum of two numbers is 54 and the difference is 18 . what are the numbers

Respuesta :

bcalle
bcalle bcalle
  • 21-05-2017
x + y = 54
x - y = 18   Add the two equations together
---------------
2x   = 72     Divide both sides by 2

x = 36
36 + y = 54   Subtract 36 from both sides
y = 18
the numbers are 36 & 18
Answer Link

Otras preguntas

What is the sides length of a triangle with a side that is 3 inches in length and a hypotenuse of 5 inches ? ( round to the nearest tenth ) : HELP PLZ
what are the systems that affect earths position and features
Which of the following properties of an element is least likely to change with beta decay?
what is the inverse of the function (x) = 1\4 x -12
how do you solve 9+ (-3)=
Why is the Christian Cross important to Christianity?
History is more than a series of events. It is a ___ of events.
Michael tells Sara he weighs 104 pounds. Sara says she is 44 kilograms. If there are 2.2 pounds in a kilogram, who is heavier?
I need help on this
NUMBER SENSE: Fort Knox holds 147,3000,00 ounces of gold. Write the number that is one million more.