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

Need help immediately!!!!!!!
Adama Company incurred the following costs.Indicate to which account Adama would debit each of the costs.1. Sales tax on factory machinery purchased$ 5,000
do you have all the pic of profit and loss?? class 9 vedanta publication book
Cofactors for some enzymes are not considered prosthetic groups because they are loosely held during the course of reaction.A. TrueB. False
(BRAINLYIST AND 5 POINTS!) What is one event from the American Revolution. Max of up to 15 words. other than the stamp act.
Value of the derivative of g(x)=8-10Cosx at 'x=0' is?
If 24% of 400 people watched the news, how many ppl watched?
anyone have the Dell xps 13 laptop? if not pls don't answer but if you do, how is it going for you?​
A serving of Frosted Flakes cereal contains 235,000 J of energy. Calculate the change in temperature (ΔT) that would occur if this food was used to heat 1,000 g
please answer...............​