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 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

Yall mfs tweakin shorty
Why do cultures change? ​
3x = 8x - 25 can some figure this answer out?
journal about southeast Asian arts and crafts​
Rewrite 2/3x-3=2/7 so that it does not have fractions
PLEASE HELP! WILL MARK BRAINLIEST!
To access documents stored on a "cloud", you'll A. Use a laptop without an Internet connection B. Use a desktop with an internet connection C. Send a text me
select the smallest fraction from the following list of fractions
What was one result of President Haye's decision to end Reconstruction? A. the return of southern states to "home rule" B. an increase in Republicans elected to
Thomas needs to buy a bag of rice at the grocery store. Which bag of rice has the smallest unit price? Group of answer choices 100-ounce bag that costs $3.00 80