Recall your d = rt, distance = rate * time.
now, let's say she lives "d" miles away, and so if Billy goes say at "r" mph fast to her house, he gets there in 1hr.
now, if he goes 20 mph slower, namely " r - 20 " mph, he gets there in 2 hours, same "d" miles.
Answer:
option C is the correct answer my friend
Answer:
it would be 2.5
Step-by-step explanation:
Step-by-step explanation:
4×-20=10y
4x/10-20/10=y
x/5 -2=y
x/5 +(-2)=y--------(1)
we have
y=mx+c----------(2)
comparing eq. 1 and 2,we get,
slope (m)=1/5
c= -2
I inch per hour for 2 hours = 2 inches
2 inches per hour for 6 hours = 6*2 = 12 inches
1 inch per hour for 1 hour = 1 inch
2+12+1 = 15 inches of snow total