The westbound train travels at 55 miles per hour. The eastbound train travels at 75 miles per hour.
Let t be the time taken by the trains
Distance = speed * time
Distance covered by westbound train D = 55 * t
Distance covered by eastbound train D = 75 * t
the two trains are 364 miles apart
So we add the distance and set it equal to 364
364 = 55t + 75t
364 = 130 t
Divide by 130 from both sides
t = 2.8 hours
it will take 2.8 hours for the two trains to be 364 miles apart
Answer:
Try D
Step-by-step explanation:
To find the scientific notation of a number, place a decimal point after the first digit. Count how many places you moved the decimal point and that will be the power of 10.
19,340 = 1.9340×10^4
