Question
Danni races cars at her local racetrack. She drove her red car 400 meters in 5 seconds. If she drives the same car at the same rate, how fast will she be able to complete a race that is 600 meters?(1 point)
Responses
200 seconds
40 seconds
7.5 seconds
3.33 seconds
Responses
200 seconds
40 seconds
7.5 seconds
3.33 seconds
Answers
GPT 3.5
To find out how long it would take for Danni to complete a race that is 600 meters at the same rate, we can use the formula:
speed = distance/time
We know the distance (600 meters) and the speed (400 meters/5 seconds), so we can rearrange the formula to solve for time:
time = distance/speed
time = 600 meters / (400 meters/5 seconds)
Simplifying the expression inside the parentheses:
time = 600 meters / (80 meters/second)
Dividing 600 by 80:
time = 7.5 seconds
Therefore, Danni will be able to complete the 600-meter race in 7.5 seconds. So the correct answer is 7.5 seconds.
speed = distance/time
We know the distance (600 meters) and the speed (400 meters/5 seconds), so we can rearrange the formula to solve for time:
time = distance/speed
time = 600 meters / (400 meters/5 seconds)
Simplifying the expression inside the parentheses:
time = 600 meters / (80 meters/second)
Dividing 600 by 80:
time = 7.5 seconds
Therefore, Danni will be able to complete the 600-meter race in 7.5 seconds. So the correct answer is 7.5 seconds.