zekkosyt zekkosyt

02-11-2020
Mathematics

contestada

A system of equations is shown.

3x+y=20

2x−2y=8

What is the value of x+y for the system of equations?

Respuesta :

emmymstarr emmymstarr

03-11-2020

Answer:

x+y=8

Step-by-step explanation:

2(3x+y=20)

6x+2y=40

2x-2y=8

8x=48

x=6

18+y=20

y=2

Answer Link

Otras preguntas

Which three sentences in this excerpt from "Quality" by John Galsworthy show that the writer admired the boots that the boot maker had crafted?

Mercantilism was the belief that colonists would henceforth be required to pay taxes to the crown to fund their own protection. a government could tax without c

Three candidates for the student government each tell three other people that the election will beheld next Tuesday. Those three people each tell three more peo

List and explain the differents type of Love

Over time, people who abuse alcohol become so tolerant that their bodies rely on alcohol for everyday functions. What type of addiction does this describe? A.

9. As the main author of American foreign policy, the President acts as the nation's chief executive chief of party chief diplomat commander in chief

What is the distance between between E and F on the coordinate plane shown below? 3 units, 6 units, 9 units, or 12 units

Assume taxes increase by $300 and government spending increases by $300. The marginal propensity to consume is 0.75. Calculate the total change GDP.

The five articles of faith listed above describe the most important duties necessary forA. a Christian to achieve spiritual rebirth.B. a Buddhist to achieve enl

Which of the following methods of food preservation involve the use of heat to decrease the numbers of pathogens in the food? A. Irradiation B. Pasteurization