A circular running track is 1/4 mile long. Elena runs on this track, completing each lap in 1/20 of an hour. What is her speed?
1 answer:
Answer:
Her speed is 5 miles per hour.
Step-by-step explanation:
The formula of the speed is given by:
In which d is the distance, and t is the time.
In this question:
Distance: 1/4 mile = 0.25 miles.
Time: 1/20 hour = 0.05 hours.
So
Since the distance is in miles and the time in hours, the speed is in miles per hour.
Her speed is 5 miles per hour.
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Answer:
h= -8/3
Picture Explanation:
- Divide 3 on both sides of the equal sign, as shown above, so (h) can be alone.
- Since negative 8, let alone positive 8, can't be divided into 3, you simply leave the fraction as is. So you're left with (h= -8/3)
<em><u>Hope this makes sense.</u></em>
Answer:
Step-by-step explanation:
We are given that a student needs to make a square cardboard piece.
Perimeter of cardboard should be equal to atleast 92 inches
We have to find that which shows reasonable domain for f(s)
Let s be the side of square cardboard
We know that perimeter of square =f(s=)
Then, perimeter of cardboard=
Dividing by 4 on both sides
Hence, the domain of function
Therefore, option d is true.
Answer:d: