You have to do a system, lets say x are noble fir trees and y are douglas fir trees,
5x+3y=420
12x+9y=1080
if you solve this you get,
x=60 and
y=40
SO Noble fir trees cost $60 and Douglas fir trees cost $40.
You can use a proportion
1/2(acres) 2(3/4)acres
-------------- = --------------
4(days) x(days)
4*2(3/4) = 6
6/(1/2) = 12
It would take 12 days.
Hope this helped☺☺
X + 2y = -8
Subtract 'x' to both sides:
2y = -x - 8
DIvide 2 to both sides:
y = -1/2x - 4
Slope is -1/2, not 1.
Answer:
no because a decimal occurs
Step-by-step explanation:
445,760/6 = 74293.3333333
