Answer:
0.50 seconds
Step-by-step explanation:
The time it takes for an echo to return is the time it takes for the sound to make the round trip between the source and the reflecting object.
The boulder is 80 m away from the source, so the round-trip distance is 2×80 m = 160 m. At a speed of 320 m/s, it takes sound ...
(160 m)/(320 m/s) = 0.50 s
to make the round-trip.
It will take 0.50 seconds to hear the echo.
Answer:
y=5x+8
Step-by-step explanation:
You would use y=mx+b soooo it would be y= 1/2+1 because it’s up 1 over 1/2
The value of x is B.4 I think
