64
x+81+x+39+50+62=360
2x+232=360
2x=128
x=64
Answer:
I think number 1=209
number 2=120
number 3=89
Step-by-step explanation:
x= 1st aircraft
y=2nd aircraft
z=3rd aircraft
x=y+89
y=z+31
z=y-31
x+y+z=418
y+89+z+31+y-31=418
2y+89+z=418
2y+z=329
2y+(add z)
2y+y-31=329
3y=360
y=120
x=120+89=209
z=120-31=89
I dont kno what the total is but i needed points sorry hahaha
Answer:
2 oldies and 6 new releases
Step-by-step explanation:
let x equal number of oldies
let y equal number of new releases
2x + 4y = 28
x + y = 8
x = 8 - y
2(8 - y) + 4y = 28
16 - 2y + 4y = 28
2y = 28 - 16
2y = 12
y = 12/2
y = 6
x = 8 - y
x = 8 - 6
x = 2
The work is simply the dot product of the force and displacement (which I assume are given in Newtons and meters, respectively):
<em>W</em> = <em>F</em> • <em>d</em>
<em>W</em> = (5i + 3j - 2k) N • ((4i<em> - </em>j + 3k) m - (j + k) m)
<em>W</em> = (5i + 3j - 2k) • (4i - 2j + 2k) Nm
<em>W</em> = (20 - 6 - 4) Nm
<em>W</em> = 10 J
