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2 years ago

Find the interquartile range of the following data set 3,9,12,4,6,40,25,14,10

1 answer:

8 0

14.5 is the Interquartile range

To find it you take the 75th Percentile (19.5) and subtract it from the 25th Percentile (5)

19.5-5 = 14.5

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3x = 2/5 what is x plz help

a_sh-v [17]

3x = 2/5

x = 2/5 · 3

x = 17/5

x = 3.4

3 0

2 years ago

Read 2 more answers

The value of a car after t years can be found using the formula V = C(1 - r)t, where V is the current value of the car, C is the

Stells [14]

The given formula is
$V = C(1-r)^{t}$

Therefore
$(1-r)^{t} = \frac{V}{C} \\\\ 1-r = ( \frac{V}{C} )^{1/t} \\\\ r = 1 - ( \frac{V}{C} )^{1/t}$

Given:
C = $25,000
V = $12,000
t = 4.5 years

C/V = 0.48
1/t = 0.2222
Therefore
$r = 1 - 0.48^{0.2222} = 0.1505 = 15.05\%$

Answer: 15% (nearest integer)

8 0

3 years ago

Solve the system of equations algebraically.

lubasha [3.4K]

Answer:

Option (d) is correct.

(1, 0) is the solution of the given system of equation.

Step-by-step explanation:

Consider the given system of equation

4x - 2y = 4 ........(1)

6x - 4y = 6 ........(2)

We have to solve the system algebraically ,

We will solve it by elimination method,

Multiply equation (1) by 2, we get,

(1) ⇒ 8x - 4y = 8 ............(3)

Subtract equation (2) from (3) , we get,

8x - 4y - (6x - 4y) = 8 - 6

8x - 4y - 6x + 4y = 2

8x - 6x = 2

⇒ x = 1

Substitute x = 1 in (1) and solve for y , we get,

⇒ 4x - 2y = 4 ⇒ 4 (1) - 2y = 4 ⇒ 2y = 4 - 4 ⇒ 2y = 0 ⇒ y = 0

Thus, (1, 0) is the solution of the given system of equation.

Option (d) is correct.

4 0

2 years ago

Read 2 more answers

PLEASE help. Thank you !!

Black_prince [1.1K]

Answer:

9 white ribbons were awarded

Step-by-step explanation:

make white x

make blue b and make red r

b=x-1

r=x+3

w=x

add them up

x-1+x+3+x=29

x-1 +x+3 is 2x+2

2x+2+x=29

3x+2=29

subtract 2 on both sides

3x=27

divide by 2

x=9

6 0

3 years ago

John read the first 114 pages of the novel, which was 3 less than 1/3 of the novel

Nastasia [14]

Let p = total pages in the book
114 pages of a novel which was 3 pages less than 1/3 
114 was 1/3 total pages - 3 pages 
114 = 1/3p - 3

6 0

3 years ago

Read 2 more answers

Find the interquartile range of the following data set 3,9,12,4,6,40,25,14,10​

Find the interquartile range of the following data set 3,9,12,4,6,40,25,14,10