2006-09-21 15:31:32 · 11 answers · asked by Monique 1 in Science & Mathematics ➔ Mathematics
unlucky number 13!
This problem is the same as
-15 + (+28) = 28 good guys fight 15 bad guys = 13 good guys remain!
+13
2006-09-21 15:33:47 · answer #1 · answered by J G 4 · 0⤊ 0⤋
The 2 negatives cancel out, leaving -15+28. Your answer is 13
2006-09-21 22:34:20 · answer #2 · answered by MateoFalcone 4 · 0⤊ 0⤋
Subtracting a negative is the same as adding a positive.
-15 +28 = 13
2006-09-21 22:34:12 · answer #3 · answered by Bramblyspam 7 · 0⤊ 0⤋
same as -15+28, same as 28-15, so 13
2006-09-21 22:34:21 · answer #4 · answered by foxfirevigil 4 · 0⤊ 0⤋
Dude.........
-15 -(-28)
=-15 +28(minus & minus become plus, because sinc minus is outside the bracket & the number inside the bracket is also minus)
= 13 (-15 +28 becomes 13 with the sign + of higher number)
Therefore the answer is 13
2006-09-21 23:31:42 · answer #5 · answered by Amigo 1 · 0⤊ 0⤋
-15 - (-28)
= - 15 +28 because a negative neagtive is a positive
= 28 - 15 communitive law of addition
= 13
2006-09-21 22:34:05 · answer #6 · answered by captn_carrot 5 · 0⤊ 0⤋
since negative 28 is in parenthesis and a negative sign is out of the parenthesis the -28 has to come out of teh parenthesis and teh otehr negative turns it to positve 28 then all u gotta do is -15+28 which =13
2006-09-21 23:28:48 · answer #7 · answered by Darling 4 · 0⤊ 0⤋
+13. 2 points
2006-09-21 22:47:38 · answer #8 · answered by Mike Honcho 5 · 0⤊ 0⤋
+13.
It's that when you subtract two negatives you always change the - sign to a +. Also you change the number to your right to the opposite sign.
2006-09-21 22:41:17 · answer #9 · answered by Ronald. 4 · 0⤊ 0⤋
13. When subtracting a negative, it always becomes positive.
2006-09-21 22:41:26 · answer #10 · answered by Chelsi 1 · 0⤊ 0⤋