mayvar
mayvar
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
VER TODAS LAS RESPUESTAS ( 27+ )
Otras preguntas
Explain what the point of intersection of two linear graphs represents
The objectivity principle requires that a. accounting principles must meet the objectives of the Security and Exchange Commission b. amounts recorded in the fin
w(x)=3x-7. If w(x)=14, find x
An injury to which region would interfere with the sleep wake program
Read this news report about a planned devaluation of the bolivar, the currency of Venezuela. The president of Venezuela announced that the country would be deva
Your test scores for the semester are 87,84 and 85.Can you raise your test average to 90 with you next test?
Which themes are addressed in this stanza from "the Raven" by Edgar Allen poe? Then, methought, the air get denser, perfumed from an unseen center Swung by sera
A father experienced the onset of chest pain and dies suddenly. The family asks, "What caused him to die so suddenly?" a.The health care provider's reply that
change into60f into c
The product of two numbers is 225 but their sun is -30 what are these two numbers
