Answer:
Step-by-step explanation:
Answer:
Elena's running speed is 5 miles/hour
Explanation:
The speed is defined as the covered distance per unit time
In the problem, we have:
The distance covered is the length (circumference) of the circular track which is given as of a mile.
We are also given that she completes each lap (she completes of a mile) in of an hour
To get her speed, we will divide the distance covered by the time taken to cover this distance
This is done as follows:
speed = miles/hour
This means that:
Elena can run 5 miles each hour
Hope this helps :)
Complete question :
Priya is stacking building blocks to make a tower. She takes a break when the tower is 2 and 1/2 feet tall, which is 5/8 of the height of the tower she wants to build. How tall is the tower when finished
Answer:
4 feets
Step-by-step explanation:
Given that:
Height of building when she took a break = 2 1/2 feets
Let the entire height of the tower = x
2 1/2 feets = 5/8 of the tower height
2 1/2 feets = (5/8)x
Height of tower when finished ; fins the value of x
5/2 = 5x / 8
Cross multiply
5*8 = 2*5x
40 = 10x
Divide both sides by 10
40/10 = 10x/ 10
4 = x
Hence, height of tower when completed is 4 feets
Answer:
-48.1818
Step-by-step explanation: then u round up to 3 singnificant figures
