05-09-2014
Mathematics

contestada

use elimination to solve: NN+ND=50
5NN+10ND=450

Respuesta :

mariamikayla mariamikayla

05-09-2014

[tex]5NN+10ND=450\\5(NN+2ND)=450 \\ NN+2ND=90 \\ \\ \boxed{NN=90-2ND} \\ \\ NN+ND=50 =>\boxed{NN=50-ND} \\ \\ \\ 90-2ND=50-ND \\ -2ND+ND=50-90 \\ -ND=-40 \\ \\ \boxed{ND=40} \\ \\ NN=50-ND \\ NN=50-40 \\ \\ \boxed{NN=10}[/tex]

Answer Link

Otras preguntas

All dogs and cats are given a topical flea and tick treatment on impound. true of false

José spends most of his time thinking about Sheila, the love of his life. This had led to José neglecting his course work. From a Freudian perspective José's ne

With God going before us . . . we may . . . deliberate and discuss . . . whatsoever is needful for repelling those assaults of barbarians and infidels, with whi

Children as young as age 2 display a sophisticated understanding of role relationships and story lines. awareness that make-believe is a representational activi

How to translate f(x)=ln(8-x) into g(x)=lnx

the framers of the U;S; constitution addressed the problem of ividing authority between state governments and the national government by alowing the staets to r

4. Explain how these geological processes and interactions have changed Earth's surface through the years. Be sure to use evidence to support your answer pleas

Please Help Find the value of x

Which of the following equations has no real solutions? A. 3(x − 4) = 3x − 12 B. 3x − 4 = 3x − 4 C. 3x − 4 = 12x − 4 D. 3(x + 4) = 3(x + 11)

yo / llevar / mi / papeles / a / la clase You Answered Yo llevo mis papales a las clase.Yo llevo mis papalesIncorrect or extra word a lasIncorrect or extra word