DStacy01 DStacy01
  • 02-10-2014
  • Mathematics
contestada

Three times a number plus twice another is 10, while their sum is 10, Find the numbers

Respuesta :

mariamikayla
mariamikayla mariamikayla
  • 02-10-2014
[tex]3a+2b=10 \\\\ a+b=10 \\\\ \boxed{a=10-b} \\\\ 3(10-b)+2b=10 \\\\ 30-3b+b=10 \\\\ -b=10-30 \\\\ -b=-20 \\\\ \boxed{b=20} \\\\ a=10-20 \\\\ \boxed{a=-10}[/tex]
Answer Link

Otras preguntas

I don't get it plz help
Which of these is not a part of the ‘Johari window’? a) Hidden self b) Blind self c) Open self d) Ideal self
The central core of an atom is called the a. reactor vessel. b. neutron. c. proton. d. nucleus.
how many 1/4 teaspoon doses are in 7/8 teaspoon of medicine
Government instability often leads to humanitarian issues such as __________. a. decreased poverty b. fewer refugees c. increased famine d. better 6 care
Liam is reading a 254-page book for school. He can read 40 pages in one hour. The equation for the number of pages he has left to read is y=254-40x, where x is
All of the following factors helped give rise to unions EXCEPT a. early government support. c. little job security. b. low pay. d. poor working conditions.
what did the collapse of communism lead to increased mortality in eastern europe
You answer 12 out of 20 problems correct on your homework. What percent did you answer correct? What percent did you answer incorrect?
The PRIMARY obstacle to population growth in the area known as the "Canadian Shield" is that A) the area is not capable of intensive agricultural output. Elimi