Answer:
A
Step-by-step explanation:
Answer:
C. O.5s
Step-by-step explanation:
If the wave length is 100m and it goes at a speed of 200m/s then it will only take 0.5 seconds because 100 is half of the speed of 200
You would multiply 4 on both sides
5x=2
then you would divide 5 on both sides
x=2/5
Answer:
30 out of 40: 75%
40 out of 50: 80%
40 out of 50 is the better score