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 ( 43+ )
Otras preguntas
Which sentence correctly uses commas? I don’t like watching a lot of TV, but, I really enjoy going to the movies. My teacher who has lived, in several countries
24. The team won (its, it's) game. Did you win yours (to, too, two)? 25. I brought (a, an) apple to school for (a, an) snack. 26. (Loose, lose) clothing should
When was the Roman Empire most successful and why was the success so hard to maintain?
Which of the following is true? a. A hypothesis is a measure, such as price or quantity, that can take on different values at different times. b. To test a hypo
in photosynthesis, what three things enter from outside the plant?
Humans have impacted the rainforests through mining, agriculture, and construction.
An object with a negative acceleration could NEVER have a positive velocity. a. TRUE b. FALSE
-7(8+7v)= -5+2v solve the equation
1/2(6h – 4) = -5h + 1
add commas, colons and semicolons. sydney is the capital of australia
