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 ( 66+ )
Otras preguntas
A piece of land is 6 4/5 miles wide. It is 2 1/8 times as long as it is wide. How long is the piece of land?
A company is setting its direct materials and direct labor standards for its leading product. Direct materials cost from the supplier are $8 per square foot, ne
what quadrent would the point (-8,-5) be?
Look at the figure find the value of x. 4x-16 2x-4 3x-2
The measure of one interior angle of a triangle is 45 What can you conclude about the other two interior angles of the triangle?
Geometry math question no Guessing and Please show work thank you
Please answer this is hard for me
Gaps in the myelin sheath are called A. synapses. B. nodes of Ranvier. C. interaxons. D. ganglia.
*Giving all the points I have on this one!! Please! What is the approximate area of the unshaded region under the standard normal curve below? Use the portion o
How would you describe the difference between the graphs of f(x)=2/3x^3 and g(x)=2/3(-x)^3?