The price of each item is $1.37.
Its 2,4 as the correct answer
Answer: The running speed of Elena is 5 miles/hour and this can be determined by using the formula of speed.
Step-by-step explanation:
A circular running track 1/4 is a mile long.
Elena runs on this track, completing each lap in 1/20 of an hour.
Speed formula is used to determine the speed of Elena. The formula of speed is given by:
----- (1)
where S is the speed, D is the distance and T is the time taken by Elena to run a circle.
Now, put the value of distance D and time T in the equation (1).
Speed = 5 miles/hour
Therefore, the running speed of Elena is 5 miles/hour.
For more information, refer to the link given below:
brainly.com/question/22610586
Answer:
4.5 inches long
Step-by-step explanation:
3 feet is equal to 36 inches, so you do 36/8 which equals out to 4.5 inches per car
Assuming this is written as 7m/min * 60min the correct units will be 420meters
