Answer:
Where is the question
Step-by-step explanation:
Common difference = 0.75
Next term = -0.75 + 0.75 = 0
Answer:
12
Step-by-step explanation:
divide 84 by 7.
55mph.
you can solve it using the equation distance=speed x time
your total distance is 714, and you have 2 trains, one traveling some speed, x, and one traveling x+8, both traveling for 7 hours.
your equation would look like this

and you can then solve for x, which would be 47. this is the speed of the slower train, but 47+8=55 with give you the speed of the faster train.