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

Explain briefly how you would obtain crystals of sodium chloride from a mixture of sodium chloride ,lead[ii]oxide and iron filings

The first step when dividing 9m2 − 4m − 6 by 3m is shown. Which could be the next step? 3m − − 3m − − 3m − − 3m − −

1. Who owns the property in Mercantilism?

Do all the cells look the same in a filament? If there is a difference, describehow they are different.

The radius of a circle is 13 yards. What is the circle area ?

Question 1 Ahmed is a professional football player in UAE. Aljazeera Club is negotiating with him to join the club. The Club presented two offers to Ahmed; the

A triangle has an area of 20 square centimeters. The height of the triangle is 10centimeters. What is the length of its base?

Please help me with 1,2,3,4 please I really need help

ANSWER QUICKLY PLEASE 40 POINTS!!!!! Identify the following items as parts of either President Clinton's or President Reagan's policies. gun reform increase mil

Let me know if u know the answer for this thank u bye