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Vlad1618 [11]
3 years ago
8

The table to the right shows selected ages of licensed drivers in one country and the corresponding percentiles. Find the percen

tage of drivers who are younger than 2020.
Age Percentile
75 97
65 90
55 78
45 58
35 37
25 13
20 66

The percentage of drivers who are younger than 2020 is _____%.
?(Type a whole? number.)
Mathematics
2 answers:
PolarNik [594]3 years ago
7 0

Answer:

66%

Step-by-step explanation:

Given :

Age          Percentile

75           97

65           90

55           78

45           58

35           37

25           13

20           66

To Find :The percentage of drivers who are younger than 20 is _____%.

Solution:

Refer the given table

The percentile corresponding to age 20 is 66.

Percentile : A data item is said to be in nth percentile of distribution if n% of the distribution are less than that particular data item.

So, drivers who are younger than 20 are said to be in 66 percentile if 66%of the distribution are less than that particular data item.

Hence The percentage of drivers who are younger than 20 is 66%.

Varvara68 [4.7K]3 years ago
7 0

Answer:

6%

Step-by-step explanation:

Percentile : A percentile of a number represents the percentage of data fall below that number.

The given table shows the selected ages of licensed drivers in one country and the corresponding percentiles.

Age          Percentile

75                   97

65                  90

55                   78

45                   58

35                   37

25                   13

20                   6

From the given table it is clear that the percentile corresponding to age 20 is 6. It means the age of 6% of the drivers is less than 20.

Therefore, the percentage of drivers who are younger than 20 is 6%.

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WINSTONCH [101]

Answer:

Step-by-step explanation:

The Pythagorean theorem is sqrt(a^2 + b^ 2) = c, so:

sqrt(22^2 + 8^2) = c

sqrt(548) = c

23.41 = c

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2 years ago
Find the size of the angle using Sohcahtoa or Pythagoras.
lisov135 [29]

Answer:

x ≈ 38.7°

Step-by-step explanation:

Using the sine ratio in the right triangle

sinx = \frac{opposite}{hypotenuse} = \frac{5}{8} , then

x = sin^{-1} (\frac{5}{8} ) ≈ 38.7° ( to 1 dec. place )

6 0
2 years ago
There is 1500 ft of fencing available to make 6 identical pens. Find the maximum area for EACH pen (meaning maximum of one pen).
hjlf

Answer:

The maximum area is therefore is 93750 ft²

Step-by-step explanation:

The given parameter are;

The a]length of fencing available = 1500 ft.

The perimeter of the figure = 9·x + 4·y

Therefore, 9·x + 4·y = 1500 ft.

The area of the figure = 6 × (x × y) = 3·x × 2·y

From the equation for the perimeter, we have;

9·x + 4·y = 1500

y = 1500/4 - 9/4·x = 375 - 9/4·x

y = 375 - 9/4·x

Substituting the value of y in the equation for the area gives;

Area = 3·x × 2·y = 3·x × 2·(375 - 9/4·x) = 2250·x - 27/2·x²

Area = 2250·x - 27/2·x²

The maximum area is found by taking the derivative and equating to zero as follows;

d(2250·x - 27/2·x²)/dx = 0

2250 - 27·x = 0

x = 2250/27 = 250/3

x = 250/3

y = 375 - 9/4·x = 375 - 9/4×250/3 = 187.5

The maximum area is therefore, 3·x × 2·y = 3 × 250/3 × 2 × 187.5 = 93750 ft²

The maximum area is therefore = 93750 ft.²

4 0
3 years ago
 
Misha Larkins [42]

Answer:

It's 130.66, D

Step-by-step explanation:

:)) yw

8 0
3 years ago
Read 2 more answers
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3 years ago
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