<u>Answer- </u>Wendy spent 3 hours on the train
<u>Solution-</u>
The distance between the cities= 500 mi.
She traveled part of the way by bus, and other part by train.
The bus averaged 40 mph, and the train averaged 120 mph.
The entire trip took 6.5 hours.
let d = distance traveled by train
the total distance was given as 500 mi ,
therefore, distance traveled by bus = (500-d) mi
time = distance/speed
⇒ train traveling time + bus traveling time = 6.5 hrs
⇒
⇒ d + 3(500-d) = 120(6.5)
⇒ d + 1500 - 3d = 780
⇒ 2d = 720
⇒ d = 360 mi
so d = 360 mi by train
⇒ 360/120 = 3 hrs on the train
Answer:
Option D
Step-by-step explanation:
They have different slopes but same Y intercepts so there is ONE SOLUTION.
Answer:
Problem:
Answer:
Step-by-step explanation:
Writing as one fraction:
Now before we continue, notice both of your bottom and top are in the form of (a-b)(a+b) or (a+b)(a-b) which is the same format.
That is, we are multiplying conjugates on top and bottom.
When multiplying conjugates, all you have to do it first and last.
For example:
.
So your problem becomes this after the multiplication of conjugates:
Answer:
Step-by-step explanation:
that is the answer