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 is the formulas for volume ?

describe the 3 types of ecological pyramids

write an equation to represent the relationship "a number decreased by negative 7 is the same thing as 48

Find the digits in the ones place, in the hundredths place, and in the ten thousandths place for the following number. 361.9167

which of the following best describes the social characteristics of ancient israel after the fall of judah in 586 b.c.e? a. 12 tribes unified into an independen

from the deepest to the surface, what are the parts of the earth’s interior? a. core→crust→mantle b. mantle→crust→core c. crust→mantle→core d. core→mantle→crust

in a chemical reaction, a reaction blinds to an enzyme at a region known as the

Susan wants to find someone to do yard work at her house for the summer and fall seasons. WeWork charges a $200 fee and then a $10 per hour fee. Merry mowing ch

what were the main functions of a guild? a. to protect the interests of people working in an industry and maintain standards within the industry b. to demand go

1 1/4% 0f what equals 1.5