Answer:
B
Step-by-step explanation:
<span> -vp + 30 < 45 for v.
</span> -vp < 15
v > -15/p
hope it helps
The tail of the train starts one mile from the mouth of the tunnel and it must travel that distance plus the length of the tunnel in 3 minutes.
Let t = tunnel length
t + 1 = distance the tail must travel in 3 minutes.
3 minutes = 1/20 hr
(t+1) miles / 60 m/hr = 1/20 hr
t + 1 = 60/20
t+1 = 3
Subtract 1 from each side:
t = 2
The tunnel is 2 miles long.
Below is a scale drawing of the town swimming pool. In the drawing, the longest side of the
pool has a length of 10 inches. Paco creates a new scale drawing of the pool. In his drawing,
the longest side of the pool has a length of 5 inches. What scale is Paco's new drawing?