The train holds 66 passengers. It starts out empty.
It picks up 1 passenger at the first station, 2 passengers at the second station, 3
passengers at the third station, and so on.
No one gets off.
After how many stations will the train be full?

11 stations.

Step-by-step explanation:

1st stop = 1

2nd stop 1+2=3

3rd stop 3+3=6

4th stop 6+4=10

5th stop 10+5=15

6th stop 15+6=21

7th stop 21+7=28

8th stop 28+8=36

9th stop 36+9=45

10th stop 45+10=55

11th stop 55+11=66

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

your answer would be 12