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

[15 Points]Find the quotient with the restrictions. (x^2 - 2x - 3) (x^2 + 4x + 3)----------------- ÷ ------------------(x^2 + 2x - 8) (x^2 + 6x + 8)
ظhelp me please guys
When 142 is added to a number the result is 64 more times the number My options are 35 37 39 41
What word best describes the tone of this excerpt from "The Fall of the House of Usher" by Edgar Allan Poe? I looked upon the scene before me—upon the mere hou
HELP Question 3 (Essay Worth 10 points) (03.06 MC) Part A: Max rented a motorbike at $465 for 5 days. If he rents the same motorbike for a week, he has to pay a
artist use a small scale for portrait of a lover because it implies
Translate to french (Spell out all times & conjugate all verbs) : I am having a great time in France. I am taking art and english classes. My art class is a
Who promotes the idea that government should place little limits on its citizens
Solve the equation using the Zero-Product Property. -3n(7n - 5) = 0 a. 0, -5/7 b. -1/3, -5/7 c. -1/3, 5/7 d. 0, 5/7
An investment decreases in value by 30% in the first year and decreases by 40% in the second year. What is the percent decrease in percentage in the investment