Answer:
40 min
Step-by-step explanation:
Sea level is 0 meters. Time when Amir reaches sea level is intersection line and x-axis. It is 40 minutes.
1, 3, 9 and -1, -3, and -9 i guess
hope this helps
Answer:
n = 145
Step-by-step explanation:
-58 ÷ -0.4 = 145
n = 145
"He starts both trains at the same time. Train A returns to its starting point every 12 seconds and Train B returns to its starting point every 9 seconds". Basically, what you need to do is find the least common multiple. The least common multiple of 12 and 9 is 36, so the least amount of time, in seconds, that both trains will arrive at the starting points at the same time is 36 seconds.
