Answer:

Step-by-step explanation:
There are 60 minutes in 1 hour
To express as a fraction

Divide numerator/denominator by 15
= 
U = -b + 21 . . . (1)
u = -2b + 30 . . . (2)
Equating (1) and (2),
-b + 21 = -2b + 30
-b + 2b = 30 - 21
b = 9
u = -9 + 21 = 12
Therefore, (b, u) = (9, 12).
Answer:
Step-by-step explanation:
48? i guess. i hope this helps u out with ur question
Answer:
I think its A
Step-by-step explanation:
Answer:
sas
Step-by-step explanation: