andryCels1ea7nushadl andryCels1ea7nushadl

01-12-2016
Mathematics

contestada

What has the sum of 20 but the difference is 8?

Respuesta :

Nasornisbeautiful Nasornisbeautiful

01-12-2016

x + y = 20---- 1
x - y = 8----- 2

From 1+2
2x = 28
x = 14
Substitute x in eq.2
14 -y = 8
y = 6

Ans : x= 14 , y= 6

Answer Link

Otras preguntas

What would the Confederacy gain by receiving British recognition?

Translate the sentence into an equation. Twice the sum of a number and 5 equals 8

In their 1943 meeting at Casablanca, Allied leaders decided to invade a. Italy. b. France. c. Germany. d. North Africa.

write 1.024242424 as a fraction

What number is shown with these blocks

what is the average of 45 and 19

What type of religion was predominant in the Incan civilization? A. atheist B. Islam C. polytheistic D. monotheistic

Which term describes a behavior of an organism that allows it to survive in its particular environment? a. evolution b. adaptation c. organism d. ecosystem

John Locke helped develop the idea of a social contract between citizens and the monarchy. church. government. philosophers.

If an outdoor runner develops a headache, feels tired, and has an elevated heart rate, what is the most probable cause? A. Insufficient calories B. Overhydratio