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 ( 14+ )
Otras preguntas
Compared to consumers, producers will lose the lesser amount of surplus from a tax if:
he fundamental building block in every Hypertext Markup Language (HTML) document is the _____ tag, which marks a component in the document.
round 98 inches to the nearest foot
based on this passage which statement is the most accurate interference to make about Nora
Which of the following describes the belief that one can master a situation and produce favorable outcomes?
Water is essential for survival. It is important to understand the factors that affect water balance and the best sources to help an individual meet daily water
Which of the following is not part of feminist psychology? a. questioning the practice of science itself when it is male biased b. discovering the contributio
What special qualities do you feel you possess that set you apart from other medical school candidates? What makes you unique or different as a medical school c
What term refers to a group of compounds including triglycerides, phospholipids, and sterols?Select one: a. Polysaccharidesb. Mineralsc. Nucleic acidsd. Lipids
Barry was assigned recently to a large team working on a major software release that was taking longer than expected. Barry and the other latecomers into the pr
