Answer :
Answer:
Sierra=2songs
Matt=7songs
Yun SIl=14songs
step-by-step explanation:
Step 1
Let,The number of songs YunSil added = x
Number of songs Matt added = y
And number of songs Sierra added = z
Such that Matt has 5more than Sierra =y = 5 +z
Yun SIl has 2 times more thann Matt, x = 2y
x =2(5+z)=10 +2z
Step 2
The expression used to determine number of songs on each player given that the total of songs added on the three players =15 +z^3
Such that
YunSil+Matt+Sierra==15 +z^3
10+2z+ 5+z +z = 15 +z^3
4z +15 = 15 +z^3
4z=15-15+z^3
4z=+z^3
4=z^3/z
4=z^2
Z=√4 =2
Therefore Sierra has z=2songs
Matt has 5+z=5+2=7songs
YunSil has 2(5+z)= 2x7=14songs
The song that are on each person player are as follows;
matt song = 7
Yung Sil song = 14
Sierra song = 2
Let
a = Matt song added
b = Yun Sil song
c = Sierra song =
Therefore,
b = 2a
a = c + 5
(c + 5 + 2a + c) - c³ = 15
(2c + 2(c + 5) + 5) - c³ = 15
2c + 2c + 10 + 5 - c³ = 15
4c + 15 - c³ = 15
4c - c³ = 0
c³ = 4c
c² = 4
c = √4
c = 2
a = 2 + 5 = 7
b = 2(7) = 14
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