innocentangelaga innocentangelaga
  • 15-08-2021
  • Mathematics
contestada

The difference of two numbers is 9. The sum of the two numbers is 15. What are the two numbers?

Respuesta :

Аноним Аноним
  • 15-08-2021

Let numbers be a and b

  • a+b=15--(1)
  • a-b=9---(2)

Adding both

[tex]\\ \qquad\quad\sf\longmapsto 2a=24[/tex]

[tex]\\ \qquad\quad\sf\longmapsto a=\dfrac{24}{2}[/tex]

[tex]\\ \qquad\quad\sf\longmapsto a=12[/tex]

  • Put value in eq(2)

[tex]\\ \qquad\quad\sf\longmapsto 12-b=9[/tex]

[tex]\\ \qquad\quad\sf\longmapsto b=12-9[/tex]

[tex]\\ \qquad\quad\sf\longmapsto b=3[/tex]

Answer Link

Otras preguntas

Identify the following series as arithmetic, geometric, both, or neither. 2x + 2x² + 2x³ + . . . + 2xn
Four characteristics of hunter-gatherer societies are
Which equation below is a direct variation?
what is the result of isolating x^2 in the equation below? 10x^2-36y^2=100
You sell autographed sports memorabilia and want to reach people interested in sports. what's one benefit of promoting your products with a ads in mobile apps c
According to public opinion polls, what is public sentiment regarding the manner in which the president is elected??
The perimeter of a rectangle is twice the sum of its length and its width the perimeter is 28 M and it's length is 2 m more than twice its width what is its len
Is kansas city missouri bigger than kansas city kansas?
Country names that can be spelled two ways
What did piaget call the process in which changes occur in the existing way a child thinks in response to encounters with new stimuli or events?