Let 
be the speed of train A, and let's set the origin in the initial position of train A. The equations of motion are
where 
are the positions of trains A and B respectively, and t is the time in hours.
The two trains meet if and only if 
, and we know that this happens after two hours, i.e. at 
Solving this equation for v we have
So, train A is travelling at 105 km/h. This implies that train B travels at
Answer:
y = 2/3x + 6
Step-by-step explanation:
To do this, make an equation and put it in the form y = mx + b where m is the slope and b is the y-intercept
So first, when lines are parallel they have the same slope. This means that m will be 2/3.
The equation so far is y = 2/3x + b
Next, you have to find what b is, and to do this since you know that x = -3 and y = 4 is a solution you can plug those values into the equation and see what b would have to be for the equation to come out true.
4 = 2/3(-3) + b
4 = -2 + b
b = 6.
The completed equation is y = 2/3x + 6.
Hope this makes sense!
6 3/4 pieces, but if you just want a whole number then 6
<u>Answer:</u>
- Both will be at equal distance at 8 miles in 2 hours.
<u>Step-by-step explanation:</u>
<u>We know that:</u>
- Ed = 2 miles/hour
- Adam = 4 miles/hour
<u>Work:</u>
Adam => 0 miles
Adam => 4 miles => 1 hour
Adam => 8 miles => 2 hour
Hence, <u>both will be at equal distance at 8 miles in 2 hours.</u>
Hoped this helped.
