Respuesta :
Answer:
15 hours
Step-by-step explanation:
I'll assume "1 2" is 1/2 and "7 1 2" is 7 1/2.
We can make this into an equation by using x for hours and 1/2 as the rate and set it equal to 7 1/2 to find x.
1/2x=7 1/2
Divide each side of the equation by 1/2.
x=15
SO it took 15 hours for 7 1/2 inches of snow to fall