Answer:The LCM of 10, 15, and 20 is 60. After 60 minutes, they ring together again.
Step-by-step explanation:
In order to draw x ≤ -10 on a number line, first draw a closed dot at -10. This is because we have a ≤ and not a <. If we had a <, it would be an open dot.
Next, since we want x to be smaller, draw an arrow pointing towards all numbers that are smaller. This arrow would point to the left.
Answer:
B
Step-by-step explanation:
Answer:
20 and 90
Step-by-step explanation:
Answer:
B-(-2,1)
THIS ONE X=-2 Y=1. ALL THE POINTS CROOS HERE
