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kozerog [31]
3 years ago
5

HELP PLZ AGAIN. Same material. It is still timed. Will give 100 pts and brainly. This is vital to my math grade. Time is on the

essence and my math grade is at stake if I do not pass this. I need Slope Intercept form for the equation. HELP HELP HELP PLZ.

Mathematics
2 answers:
ruslelena [56]3 years ago
6 0

Answer:

y=4x+47

I wanted to wait for the person who originally said the answer but it's been a while and I kinda want the points. Sorry

Rom4ik [11]3 years ago
3 0

Answer:

y=4x+47

Step-by-step explanation:

With the slope and a point on the line, an equation in point-slope form can be written:

y-11=4(x+9). Simplify to get \boxed{y=4x+47}

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Two trains leave stations 360 miles apart at the same time and travel toward each other. One train travels at 70 miles per hour
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S=d/t     ⇒d=s*t
s=speed
d=distance
t=time

The first train :
d=x

x=70 miles/h*t                             ⇒   x=70t  (1)

The second train
d=360 miles - x

360 miles - x=80 miles/h*t          ⇒360-x=80t   ⇒ x=360-80t   (2)

therefore, with the equations (1) and (2) we have a systeme of equations:

x=70t
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we can solve this system of equations by equalization method.

70t=360-80t
70t+80t=360
150t=360
t=360/150=2.4     (≈2 hour  24 minutes)

Answer:  the first train meet with the second train in 2 hour 24 minutes. 


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