Concebott6jo Concebott6jo

13-07-2016
Mathematics

contestada

the sum of two numbers is 51 and the difference is 29 . what are the numbers?

Respuesta :

apologiabiology apologiabiology

13-07-2016

x+y=51
x-y=29

add equations
x+y=51
x-y=29 +
2x+0y=80

2x=80
divide 2
x=40
sub
x+y=51
40+y=51
y=11

they are 40 and 11

Answer Link

Otras preguntas

Tectonic processes are fueled by heat from __________, while atmospheric convection is fueled by heat from ___________. A. the core, the sun B. asteroid impacts

where will the next Olympics be held?

Prior to 1497, how were goods transported from India and China to Europe? 1. by a land route through central Asia 2. by land route through central Africa 3. by

round off to one decimal place please

Help please due tomorrow

prove that.....cos^2α(cosec^2α-cot^2α)=cos^2α

What is important about the progressive dates on the map?

monitor is hard copy output device??false true

What is the difference between dominance, incomplete dominance and co-dominance

Can someone help me on this math question its confusing ill give brainly when right!!!