Answer:
- 3 hours
- 1 hour 45 minutes
- 300 miles
Step-by-step explanation:
1. The trains are moving toward each other at a total speed of 50 +20 = 70 miles per hour. Together, they cover the 210 mile distance in ...
time = distance/speed
time = 210 mi/(70 mi/h) = 3 h
The trains collide after 3 hours.
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2. The fly is closing with the freight train at a speed of 100 +20 = 120 miles per hour. Together, the fly and the train cover the initial 210 mile distance in ...
(210 mi)/(120 mi/h) = 7/4 h = 1 hour 45 minutes
The fly first meets the oncoming freight train after 1 h 45 min.
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3. The fly is flying for all three hours before the trains collide, so, at 100 miles per hour, will fly 300 miles.
$52,000 + 6% = $55,120
If this helped you, would you mind answering one of my recent questions? Thanks!
Answer:
g(-4)=2.5
g(1)=0
Step-by-step explanation:
g signifies the line, ad the number in parenthesis is the x value. so for other problems like this, just find the y value of the graphed object at the x value listed. hope this helped :)
Answer:
u - v = <-7, -6>
Step-by-step explanation:
<-6,3> <1,9>
To get the result you just subtract the components of v from the components of u
<-6 - 1, 3 - 9>
<-7, -6>
