Answer:
Use the app photomath
Step-by-step explanation:
Answer:
The answer is
<h2>15x - y = - 126</h2>
Step-by-step explanation:
To find the equation of the line we must first find the slope (m)
So the slope of the line using points
(-8,6) (-9,-9) is
So the equation of the line using point (-8,6) and slope 15 is
y - 6 = 15( x + 8)
y - 6 = 15x + 120
Writing the equation in the form
Ax+By=C
We have
15x - y = -120-6
The final answer is
<h3>15x - y = - 126</h3>
Hope this helps you
Answer:
1 1/3
Step-by-step explanation:
Randy studied for the same amount of time so it would be the same answer im not sure if I'm correct but hope this helps
Answer:
Step-by-step explanation:
T=time
d=st
r=train speed
p=plane speed
<span>160=rt
</span><span>720=pt
speed of plan is 20kmph less than 5 times speed of train
p=5r-20
we notice that 160 times 4.5=720
times first equaton by 4.5
720=4.5rt
720=pt
set equal
4.5rt=pt
divide both sides by t
4.5r=p
sub </span><span>p=5r-20 for p
4.5r=5r-20
minus 4.5r from both sides
0=0.5r-20
add 20 to both sides
20=0.5r
times 2 both sides
40=r
sub back</span><span>
p=5r-20
p=5(40)-20
p=200-20
p=180
plane is 180kmph
train is 40kmph
</span>
