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 ( 63+ )
Otras preguntas
From your list, select one biotic factor and one abiotic factor that you had a negative impact on. Propose a change you could make to prevent the negative impac
For each line, determine whether the slope is positive, negative, zero, or undefined.
The perimeter of a rectangle is 70 inches. If its length is four times its width, find the dimensions. Write an equation and solve.
Which describes a stationary reference point? A. A slower moving truck from the point of view of a car passing it B. A plan from the point of view a falling sky
How do animals and people help each other. Give specific details about how a person may take care of a an animal and how an animal may help a person. Write at l
Using the pencil, plot the point (-1,-5).
What does yeast produce during fermentation ?
Drag the simplified value into the box to match each expression. 23+1⋅4−3 20+10−4⋅2 3+52−6⋅4
the points (-5,4)and (1,r) lie on a line with slope -1. Find the missing coordinates r.
Did the chicken come first or the egg I’m so confused pls help!!!
