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

why were the streets of the Cretans wide

What word best describes the tone of this excerpt from "The Fall of the House of Usher" by Edgar Allan Poe? I looked upon the scene before me—upon the mere hou

Name the type of symmetry for the figure. A) Reflectional B) Rotational C) Rotational and Reflectional D) no symmetry

Theme of "Empty Kettle," by Louis "Little Coon" Oliver

In the classical era, which city became the important center of musical composition?

Triangle ABC has perimeter 22 cm. AB= 8cm BC=5cm By calculation deduce whether triangle ABC is a right-angled triangle.

Using the exchange system, if a person ate two fat exchanges with a meal, such as one-quarter of an avocado, how many calories would he or she get from the avoc

What is a personal reason for using tobacco? Check all that apply. family use weight loss celebrity use peer pressure rules and laws

Equation to determine how many calories your body needs

What is 1/20 - 1/36? Keep it in fraction form.