marica24 marica24

03-10-2018
Mathematics

contestada

if (3,n) is a solution of Ax+3y=6 and (n,5) is a solution of 5x+y=20,what is the value of A?

Respuesta :

crisforp crisforp

03-10-2018

We have 3A + 3n = 6 and 5n + 5 = 20;

Then, 5n = 15;

n = 3;

Finally, 3A + 9 = 6;

3A = -3;

A = -1;

Answer Link

Otras preguntas

Why did Columbus write "having trouble with the crew"?

which statement explains why maintaining the gold standard had a negative impact on American farmers in the late 19th century? A.It made purchasing government-o

Which of the following is the best statement? A. Descriptions can be either objective or subjective, as long as they are detailed. B. Descriptions should be po

Which type of equilibrium exists in a sealed flask containing Br2(ℓ) and Br2(g) at 298 K and 1.0 atm?(1) static phase equilibrium (2) static solution equilibriu

Fill in the blank with the correct word. The Andersons _____ funnier as a TV cartoon than as a movie with live actors. is are has been

how did the civil war affect industries in the north?

How did the English start colonies with distinct qualities in North America?

What are examples of local diversity??

the main idea of nullification was that

In which sentence is the word but used as a preposition? A. We would like to visit the Grand Canyon, but our vacation time is up. B. None but the