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

Estimate 55 percent of 64

can you translate it GermanJe vois une maison enneigé ou habite des vikings.La femme de Hägar Dünor demande de l'aide à son cannard et le remercie l'avoir aidé

Which of the following is a physical change? Adding an acid to milk to form sour cream Adding enzymes to milk to form cheese Adding bacteria to heated milk t

What are some signs that a chemical change takes place when a firework explodes? Matter is destroyed Light is produced Heat is produced The chemical

Hailey buys a 10-trip train ticket for $72.50.kimberly buys an unlimited weekly pass for $100 and uses it for 13 trips during the week write the unit cost for e

i was --- during the lesson social did not pay attention a ) boring b ) interesting c ) boredd ) interested

A container of carbon dioxide gas at a pressure of 325 kPa and a temperature of -5.20 °C has a fixed volume. What is the pressure inside the container after it

Hey, I'm dumb and need help. Prove that opposite sides of a parallelogram are congruent. Be sure to create and name the appropriate geometric figures. (10 poin

light is the transfer of heat through electromagnetic waves t or f

3/4 of a number minus -16 equals 28. What is the number ?