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

By the mid-1700s, the largest city in the colonies was (A) New York (B) Boston (C) Philadelphia (D) Charleston (E) Wilmington, Delaware
Which of the kingdoms has the smallest number of known species
By the mid-1700s, the largest city in the colonies was (A) New York (B) Boston (C) Philadelphia (D) Charleston (E) Wilmington, Delaware
What is biogeography and what does it provide?
If a slope of a line is 2/0 is it 0 or undefined?
An airplane travels 3,260 kilometers in 4 hours. What is the airplane’s average speed?
An airplane travels 3,260 kilometers in 4 hours. What is the airplane’s average speed?
you measure or observe two events to occur at the same time one nearby and one further away. Which one did you actually see first?
What are the 3 features of a typical seigneurie
Which of the kingdoms has the smallest number of known species