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3 years ago

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Adventure play sells an mp3 for 18.00 and charges $3.25 per song. King music sell a player for $23.00 and charges $2.00. For how

many songs will the cost be the same

1 answer:

Sveta_85 [38]3 years ago

4 0

Answer:

4 songs

Step-by-step explanation:

Given data,

Adventure play sells mp3 = $18

Charges per song = $3.25

King music sell Mp3 = $23

Charges per song = $2

Let number of songs be Y, then we can calculate by using following method,

Adventure play MP3 cost + charges per song = Kings Music MP3 cost + charges per song

By putting the value, we get

$18 + $3.25 Y = $23 + $2 Y

By solving the equation,

$3.25 Y - $2Y = $23 - $18

$1.25 Y = $5

Y = $5 ÷ $1.25

Y = 4 songs

Hence, for 4 songs the cost be same.

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Answer

$f(t)=-0.2+4.1sin(t)+4cos(t)$

Step-By-Step Explanation

Given the function $f(t)=c_0+c_1sin(t)+c_2cos(t)$ .

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Expressing this as a system of linear equations in matrix form AX=B

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Where

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