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

Mike and mat went down into the dank , dusty basement to look for the old baseball cards. When the basement light went out, both boys' fear was

Pls help fast with all of them thanks

match the correct term with the columns of the geologic time scale 1. period 2. era 3. epoch 4. eon a. ? d. ? b. ? c. ? please help me

what's this symbol ( called?

who's the first president of Indonesia?

What happened as a result of offers like the one shown on this 1872 poster ?

1What is the social message of the piece above?a. to encourage kids to have higher goals in life than basketballb. to hold onto their dreamsc. to reach for the

As warm air _________, it has less pressure. A) rises B) high C) low

Choose the correct description of the graph of the compound inequality x − 2 > −4 and 3x less than or equal to 15.

A classroom is 24 metres long and 21 metres wide. Find the area of the classroom