03babyj 03babyj

04-02-2019
Mathematics

contestada

the sum of two numbers is 12 and their difference is 18 what are the two numbers

Respuesta :

pokemonsnowgurl pokemonsnowgurl

04-02-2019

Answer:

Step-by-step explanation:

x+y=12

x-y=18

Now eliminate the y by adding the two equations together to get

2x=30

x=15

then solve for y.

15+y=12

15-y=18

y= -3

Answer Link

Otras preguntas

Dolly must clean up her room before she goes out. 16. In this sentence, what word begins the subordinate clause?

when you solve a problem involving money, what can negative answer represent ?

If you know the pythagorean theorem, then you can always find the distance between two points in the plane.

Jeffrey currently has an account balance of $1,565.00. His initial deposit on the account was $625 and it earned 4.7% simple interest. How long has Jeffrey held

If electrons were used in the two slit experiment instead of light, what change would need to be made to the slit spacing in order to see a diffraction pattern?

Suppose that your household is its own society. how are the three key economic questions answered

The Glorious Revolution was a

Gerry is looking at salt under a powerful microscope and notices a crystalline structure. What can be known about the salt sample that Gerry is looking at?

What is the main way a dictionary can help improve the maturity of your writing?

Read the following poem and answer the question that follows. "Beat! Beat! Drums!" by Walt Whitman Beat! beat! drums!—blow! bugles! blow! Through the windows—th