athenacamacho5305 athenacamacho5305
  • 03-06-2020
  • Mathematics
contestada

4) The sum of two numbers is 39. Their
difference is 21. What are the two numbers?

Respuesta :

345182
345182 345182
  • 03-06-2020

Answer:

30 and 9

Step-by-step explanation:

x+y=39 , x-y=21

Solve for x:

x+y=39 , x-y=21

x= 30

Substitute x with 30:

(30)+y=39 , (30)-y=21

Solve for y:

y=9

Answer Link

Otras preguntas

1.    How does the friction affect forward motion? Give an example. 2.    Describe two ways to change the frictional force between two solids surfaces. Change t
What's a good slogan for a dietitian (have dietitian in it) ?
A number cube is rolled 24 times and lands on 2 four times and on 6 three time. Find the experimental probability of not landing on a 6
Why did president Washington want the United States to remain neutral
How did the depression affect women and children?
What is the main religion of Latin america
the area of a triangle is 41 yards to the second power with a base of 5 yard what is the height in yard
How did the depression affect women and children?
The gases in the air attracted to earth by gravity form layers called the ____
a soccer team played 160 games and won 65% of them. how many did they win?