Answer:
87+87+81+86+89+83+89= 602. Divided by 7 because that’s how many numbers there were is 86 and that is your mean/average.
2/3x-6=-10
*3 *3 Multiply both sides by 3
2x-18=-30
+18 +18 Add 18 to both sides
2x=-12
_____
2 Divide both sides by 2
x=-6 The number = -6
Hello!
The person started working at 8:30 and stopped at 11:45 for lunch. That means that person worked 1 hour and 15 minutes before taking a lunch break.
The lunch break doesn't count because the person wasn't "working" then.
Next, this person worked from 12:30 to 5:15, which means they worked 4 hours and 45 minutes.
Add this up with the 1 hour and 15 minutes from before:
4 h 45 min + 1 h 15 min = 6 hours
This person worked a total of 6 hours.
All multiples of 15 between 0 and 300,inclusive
How?
Hence.
