Following are the playback times (in hours) for a sample of 20 MP3 players. 10 , 15, 21, 21, 23, 23, 24, 26, 27, 30, 30, 31, 37
kotykmax [81]
Answer:
The 65th percentile is 37
Step-by-step explanation:
The 65th percentile is the number that splits the data in two groups. The amount of data that is less to the 65th percentile corresponds to the 65% of the data. Since we have 20 value, we calculate the 65% of 20, which is 13. By organazing the data from least to greatest, we count the values in the data set until we reach the 13th value, which in this case is 37.
Answer: 12.6 miles
Step-by-step explanation:
Here the ship is doing a circular path.
We know that the ship is 120° from the north, and we want to find the distance that the ship has traveled so far from the most northern tip of the island.
This distance will be equal to the length of the arc of 120°
You can find this as:
Arc = (angle*3.14/180)*radius
arc = (120*3.14/180)*6 miles = 12.56 miles
Now we need to round it to the nearest tenth, so we need to round it up, and we get 12.6 miles
Answer:
A: 9 seconds
B: 144 ft.
Step-by-step explanation:
A:
Let t = no. of seconds for them to meet
When they meet the sum of their distances is 270 ft, dist = rate * time
16t + 14t = 270
30t = 270
t = 270/30
t = 9 seconds
B:
He ran 9 sec at 16 ft/sec, therefore:
9 * 16 = 144 ft
Answer:
true
Step-by-step explanation:
Before you start the job, gather up your tools.
You need three tools for this job. Let's make sure
you remember how to use them:
#1). 3 is the same thing as 3/1
#2). When you need to divide fractions, turn the
second one upside down, and then multiply them.
#3). When you're multiplying fractions, multiply the numerators
to get the numerator of the answer, and multiply the denominators
to get the denominator of the answer.
Those are the tools you need to solve this problem.
1). 3/4 divided by 3 is the same as 3/4 divided by 3/1 .
2). To divide by 3/1, multiply by 1/3 .
Now you have 3/4 times 1/3 .
3). That's the same as (3 x 1) / (4 x 3) = 3/12 =<em> 1/4</em>
