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

If you are in grade when should you start studying for exams

what is field research

After mandela fled to johannesburg,what types of activities did he take up?

What are the different evidences of evolution?

Find the coordinates of the point on the directed segment from (3,2) to (6,8) that divides into a ratio of 1:3.a. (4.5, 5.5)b. (5.25, 6.25)c. (3.75, 3.5)d. (4,4

la rosa de paracelso resurgiria?

climate of a tropical rainforest

Which quotations best explain how events in the story develop the theme "do not be too quick to judge, or you may be judged yourself"? Select each correct answe

(WILL MARK BRAINLIEST, I NEED HELP URGENTLY) What is the DNA Sequence, Resulting mRNA sequence, Complementary tRNA sequence, and Resulting Amino Acid sequenc

What happened under the Marshall plan?