45 minutes before 12:15 is 11:30.
Here, we have,
given that,
what's 45 min before 12:15
To determine 45 minutes before 12:15,
we subtract 45 minutes from the given time.
i.e. we have to get the result of (12:15 - 45)
we have,
12:15 - 45 minutes = 11:30
Therefore, 45 minutes before 12:15 is 11:30.
Hence, 11:30 is 45 min before 12:15.
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-4=-1b-(1/3)b
-4=-(4/3)b
-4/-(4/3)=b
b=3
-------------------------------
(1/2)3+(5/3)2
3/6+10/6=13/6
-23/3=13/6a
(-23/3)/(13/6)=a
a=-46/13
B)2x =10
C)4x =5
D)4x =80