60$
10% of 50$ is 5(50/10), so 20% (10% x 2) would be 10 (5$ x 2)
The original 50$ added to the 10$ would make 60$
Answer:
52
Step-by-step explanation:
10(5) + (4×2)/4
50+ 8/4
50+ 2
52
Time = distance / speed
time = 1500/330
time = 4.55 seconds <== (thats rounded)
The speed of the snake is 8.95 miles per hour.
Step-by-step explanation:
Step 1:
The snake travels at a speed of 20 meters in 5 seconds.
We will need to determine the distance it covered in a single second. To do that we divide the distance covered in 5 seconds by 5.
The distance covered in 1 second 
So the snake is moving at a distance of 4 meters per second.
Step 2:
To convert the speed of the snake from meters per second to miles per hour, we multiply the speed in meters per second by 2.23694.
So to attain 4 meters per second in miles per hour, we multiply it by 2.23694.
4 meters per second
miles per hour.
Rounding this off, we get the speed of the snake as 8.95 miles per hour.