Your younger brother is pulling his sled up a hill. Each minute he moves forward 20 feet but also slides back 3 feet. Describe how you can determine the time he needs to pull his sled 130 feet forward.
ANSWER NOW!!!
d = rt,
t = d/r = 130 ft / (20 - 3)ft/min = 7.65 min.
To determine the time it takes for your younger brother to pull his sled 130 feet forward, we need to consider both his forward and backward movements.
In this scenario, your brother moves forward by 20 feet every minute but slides back by 3 feet. So, in each minute, he effectively covers a distance of 20 - 3 = 17 feet (20 feet forward, minus 3 feet sliding back).
To find the total time it takes for him to reach 130 feet, we divide the total distance by the distance covered in each minute:
Time = Distance / Speed
Time = 130 feet / 17 feet per minute
Using division, we can calculate that the time he needs to pull his sled 130 feet forward is approximately 7.65 minutes.
Therefore, it will take your younger brother around 7.65 minutes to pull his sled 130 feet forward, considering his forward movement and sliding back.