athenacamacho5305 athenacamacho5305
  • 03-06-2020
  • Mathematics
contestada

3) The sum of two numbers is 20. Their
difference is -2. What are the two numbers?

3 The sum of two numbers is 20 Their difference is 2 What are the two numbers class=

Respuesta :

blueninjaalienz
blueninjaalienz blueninjaalienz
  • 03-06-2020

Answer: 9, 11 (or for the picture 48 and 52)

Step-by-step explanation:

The sum of two numbers (x, y) is 20;

x+y=20

One is 2 greater than than the other;

y=x+2

Now, we can put that in for y;

x+(x+2)=20

And solve;

2x+2=20

2x=18

x=9

Now, substitute in the value of x into the second equation;

y=9+2

And we get our answer.

y=11

My explanations are bad :(

Answer Link

Otras preguntas

can someone help me with the question i have already answered
How to answer this problem
How do I find the perimeter using 3.14
What is the definition of a common market? shared goods and services in multiple nations a single currency shared between nations no barriers to trade from nati
what is the formula to find the hypotenuse of a triangle?
Need help anyone know this ??
i need help with these questions help please
Which of the following was NOT one of the effects of Reformation efforts? a. There was a renewed interest in education. b. Marriages became public affairs, givi
Which statement best defines inertia?
A simpler one for the word rain and it has to be single word