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matrenka [14]
3 years ago
12

Suki has 54 rock songs, 92 dance songs and 12 classical songs on her playlist. If Suki’s music player randomly selects a song fr

om the playlist, what is the probability that the song will not be a classical song?
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
7 0

Answer:

92.4% or 73/79

Step-by-step explanation:

You have to add up all the individual songs, which is 158. Then add up the number of songs that aren't classical, which is 146. Then divide 146 by 158 which gives you your answer.

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11<br> The 7th term of Ap is 27 and the 12th term is 47.what is the sequence
inessss [21]

Answer:

3, 7, 11, 15, 19, 23, 27,.......

Step-by-step explanation:

Let the first term and the common difference of the AP be a and d respectively.

a_7 = 27 .....(given)

Therefore,

a + (7- 1) d = 27

a + 6d = 27

a = 27 - 6d...... (1)

a _{12} = 47.....(given)

Therefore,

a + (12 - 1) d = 47

a + 11d = 47......(2)

From equations (1) & (2)

27 - 6d + 11d = 47

24 + 5d = 47

5d = 47 - 27

5d = 20

d = 20/5

d = 4

Plug d = 4 in equation (1) we find:

a = 27 - 6*4

a = 27 - 24

a = 3

Therefore,

a_1 = a = 3

a_2 = a_1 + d= 3 + 4 = 7

a_3 = a_2 + d= 7 + 4 = 11

a_4 = a_3 + d= 11 + 4 = 15

a_5 = a_4 + d= 15 + 4 = 19

a_6 = a_5 + d= 19 + 4 = 23

a_7 = a_6 + d= 23 + 4 = 27

Thus, the sequence is: 3, 7, 11, 15, 19, 23, 27,.......

8 0
3 years ago
10u^2 - 4u + 3 for u = 7
Alika [10]

Answer:

L(x)=136x−487

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Sales tax on a $400 stereo is $16. What is the tax on a $650 tv?​
lana66690 [7]

Answer:

$2.6

Step-by-step explanation:

firstly we find percentage of tax .

(16/400) * 100

= 16/4

= 4 %

now ,

so 4% of 650

= (4*650)/ 100

=260/100

= $2.6

6 0
3 years ago
Suppose ABCD is a rhombus with AB=12 inches. The midpoints of its sides are joined to form a quadrilateral.
marishachu [46]

Answer:

Diagonal = 12"

Step-by-step explanation:

Learn your theorems.

5 0
3 years ago
Simplify the given expression. Assume that no variable equals 0. (14x20y10 / 28x12y14)4
liq [111]

Answer:

\frac{1}{2^{4}*14^{3} *x^{28}*y^{46}}

Step-by-step explanation:

To simplify the expression \frac{14x^{20}y^{10}}{(2*14*x^{12} y^{14} )^{4}} first we need to raise every member of the denominator to the given exponent, number 4

Remember that (x^{b} )^{c} =z^{b*c} where 'a' and 'b are natural numbers (any numbers you want

\frac{14x^{20}*y^{10}}{2^{4}*14^{4}*x^{48}*y^{56}}

Where we can make some operations, remember that \frac{x^{a} }{x^{c} }=x^{a-c}

\frac{1}{2^{4}*14^{3} *x^{28}*y^{46}}

We have assumed that nor x, nor y equals 0 in any moment, since if that would happen, we ca not simplify anything bacause error math 0/0.

7 0
4 years ago
Read 2 more answers
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