3x8= 24 +8 which is the 25% missing would be 32 students in total
Explanation is in the file
tinyurl.com/wpazsebu
Answer:
rearrange them properly to get
x-y=7
-3x+y=12
( by elimination method)
x-y = 7
-3x+y=
(x+ –3x) + (–y+y) = (7+12)
-2x+0= 19
x= -9.5
from eqn(i)
x-y=7
-9.5 - y=7
-y=16.5
y= -16.5
Answer:
(-29,-1) and (29,1)
Step-by-step explanation:
29 is a prime number so these are the only factor pairs.