Hey there!
For this problem, all you need to do is some multiplication:
40 ft per car * 28 cars = 1,120 ft total
30 ft per car * 34 cars = 1,020 ft total
You can see that Train A exceeds the limit, while Train B doesn't.
Hope this helped you out! :-)
Answer:
4,687.2 flaps
Step-by-step explanation:
#We calculate the number of flaps per second:

#Since one minute has 60 seconds, we will multiply our time by 60 seconds and then by flaps/second:

Hence, the bird makes 4,687.2 flaps in 2.604 minutes.
The sequence is arithmetic, so there is a constant difference d between consecutive terms such that



and so on, down to

(notice the pattern of 100 = 99 + 1 = 98 + 2 = 97 + 3 = … = 1 + 99)
Solve for d :

Now, the sum of the first 100 terms of this sequence is

which follows from the well-known sums


Answer:
Step-by-step explanation:

Multiply by the reciprocal of the x-coefficient. Then you have ...

If it is two answers then it would be both B and C