Brantleysmommy26 Brantleysmommy26

17-02-2017
Mathematics

contestada

Tell whether the ordered pair is a solution of the system of linear equations. Explain. (3 , 4) x + y = 7 x – 2y = -5

Respuesta :

wolf1728 wolf1728

17-02-2017

A) x + y = 7
B) x – 2y = -5
Multiplying equation A by 2
A) 2x + 2y = 14 then adding it to B
B) x -2y = -5
3x = 9
x = 3
y = 4
So, (3,4) is a solution.

Answer Link

Otras preguntas

what is a key difference between the popular spaceship framework and garrett hardin's lifeboat framework?

How many grams of fe(no3)3 · 9 h2o are required to prepare 350.0 ml of a 0.311 m solution of fe(no3)3 · 9 h2o?

What proposals might a Republican business owner want included in the Republican Party platform?

To kill a mockingbird what happens when scout rolls the tire

A nonfiction author’s purpose for writing a work helps determine if that work suits a reader’s needs. summarizes useful information. is based on factual informa

When a project is saved, the new file name appears on the ____ tab?

oLifestyle diseases are caused by a combination of

is y=5x a polynomial function?

25 gallons if gas were pumped into two different size tanks. Express the amount if gas pumped inti the smaller tank in terms if the amount g pumped in to the la

When max's father installed a new ceiling fan in his room, the "whirring" sound initially disturbed max's sleep. after a few nights, however, max was back to sl