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 ( 84+ )
Otras preguntas
Ako ay bilang na pinakamataas na maaaring Iround off pababa sa 60
Which sentence is written correctly? •Stepping into the mud ruined my shoes. •Stepping into the mud, my shoes were ruined. •The mud ruined my shoes while steppi
HELP! Who do you think has more power in labor disputes like this, the workers or the management/owners? Explain.
A car travels 4 km due north and then 2 km due west going from town A to town B. The distance traveled by the car is km. Enter the answer
solve for the linear system of equations 4x -9y = 20 2x - 6y = 16 A) (4,4)B) (4, -4)C) ( -4,4)D) (-4, -4)
A car travels 4 km due north and then 2 km due west going from town A to town B. The distance traveled by the car is km. Enter the answer
in what Ways does rainfall benefits plant and animal life
Mark the letter A, B, C, or D to indicate the correct answer for each of the following questions: Many people spend a huge amount of money on expensive _______
Answer to get brainly
Does anyone have the answers to, "Your Food Choices Affect Earth's Climate"?
