Speed can be defined as the <em><u>distance covered per time. </u></em>
The average speed formula is given as: Distance/Time
The average speed of Samuel's morning training is 7 2/3 miles/hour
We are to calculate the time in hours. Remember conversion rate :
60 minutes = 1 hour
He did 3 activities every morning
- a) Ran for 30 minutes, covering 4.5 miles.
60 minutes = 1 hour
30 minutes = ?
Cross Multiply = 30 minutes x 1 hour / 60 minutes
= 0.5 hour
Hence: Speed = 4.5 miles/0.5 hour
= 9 miles/hour
- b) Swam for 20 minutes, covering 2/3 miles
60 minutes = 1 hour
20 minutes = ?
Cross Multiply = 20 minutes x 1 hour / 60 minutes
= 1/3 hour
Hence: Speed = 2/3 miles/ 1/3 hour
= 2/3 x 3/1 (miles/hour)
= 2 miles/hour
- c) Biked for 45 min, covering 9 miles.
60 minutes = 1 hour
45 minutes = ?
Cross Multiply = 45 minutes x 1 hour / 60 minutes
= 3/4 hour
Hence: Speed = 9 miles/ 3/4 hour
= 9 x 4/3 (miles/hour)
= 12 miles/hour
- Samuel's average speed during his morning training is calculated as:
(9 + 2 + 12) miles/hour / 3
= 23/3
= 7 2/3 miles/hour
To learn more, visit the link below:
brainly.com/question/14796641
So first do 7^2 which equals 49
then 4/4 which equals 1. Then times it and you get 49.
Always remember to do B.O.M.D.A.S! I hope this helped. Good luck! :-)
Answer:
a. What is the standard error of the sample proportion who find this offer attractive? = 0.0351
b. What is the probability that the sample proportion is more than 0.15? = 0.9222
c. What is the probability that the sample proportion is between 0.18 and 0.22? = 0.4314
Step-by-step explanation:
see attachment for explanation
Whole circle area= pi r^2= 50.24
If 50.24 is the whole circle which is 360 degrees how much is the garden which is 360-120= 240 degrees
50.24/360= X/240
Cross multiply
360X= 12057.6
Divide by 360
X= 33.5 is the garden
DDDDD is the answer
What’s the mode(s) of 5,5,4,6,7,4,7,3,4,7,5,3
Pie
5 and 7
they both have 3 each