2006-08-15 18:22:26 · 7 answers · asked by Anonymous in Education & Reference ➔ Homework Help
The average is 10
-150 -120= -270
-270 + 300 = 30
30 / 3 = 10
2006-08-15 18:28:38 · answer #1 · answered by ...Sky the Limits... 5 · 0⤊ 0⤋
The average is 10. (-150)-120= -270 +300= 30....You then have to divide 30 by 3 to get 10.
2006-08-15 18:40:24 · answer #2 · answered by prettycute4u62040 4 · 0⤊ 0⤋
Normal algebraec method of adding, gives you the sum +30, right? (- 150 and -120, add up to -270, and, -270+300 would give you +30). So, the average should be 30 divided by 3, ie., 10.
Therefore, the average of the three numbers, is 10.
2006-08-15 18:32:15 · answer #3 · answered by swanjarvi 7 · 0⤊ 0⤋
Add them up and divide by 3. answer is 10.
2006-08-15 18:34:14 · answer #4 · answered by Superstar 5 · 0⤊ 0⤋
same goes for normal positive numbers: add them up then divide by 3, therefore u will get 10
2006-08-15 18:28:32 · answer #5 · answered by rulewell 3 · 0⤊ 0⤋
add them up and divide by 3
2006-08-15 18:27:50 · answer #6 · answered by Paul S 3 · 0⤊ 0⤋
Add all three numbers, then divide the answer by three.
2006-08-15 18:29:21 · answer #7 · answered by Anonymous · 0⤊ 0⤋