greenhappypiggies greenhappypiggies

01-04-2019
Mathematics

contestada

the pair of variables x=5, y=7 is the solution to the equation ax–2y=1. Find the coefficient a.

Respuesta :

06-04-2019

Answer:

a = 3

Step-by-step explanation:

Put x = 5 and y = 7 to the equation ax - 2y = 1 and solve for a:

(a)(5) - (2)(7) = 1

5a - 14 = 1 add 14 to both sides

5a - 14 + 14 = 1 + 14

5a = 15 divide both sides by 5

5a : 5 = 15 : 5

a = 3

Answer Link

Otras preguntas

Is 0.4 meter > 0.04 meter

Did George Washington have wooden teeth?

Which document is considered the supreme law of the United States and creates separation of powers? a. U.S. Constitution b. Bill of Rights c. Articles of Con

A motive which operates below the conscious level is called:

Which of the following biomes is being described below? tropical grasslands with scattered trees and shrubs a. desert b. tundra c. forest d. savanna

Which of the following are portents? Select all that apply. An eagle grasps a dove and carries it away. Odysseus glares at the suitors and mutters under his bre

Which of the following terms is described as an organism’s tendency to maintain a stable internal environment? a. adaptation c. homeostasis b. evolution d. repr

Which best describes a bacterium?

Why passage is important to theme?

It's important to consider all possible consequences as we make decisions daily. a. True b. False