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Eduardwww [97]
3 years ago
5

Plz help :( I don’t understand

Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0

PLEASE MARK AS BRAINLIST

Answer:

1. 2x-20+2x-15=13

4x-35=13

4x=13+35

4x=48

x=12

2. x-4+9=2x-4

2x-x= -4+9+4

x=9

3. IJK=41+130=171

4. KJD=88-50=38

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Answer:

In Grade 9, 20% of students liked classical music.

Step-by-step explanation:

Your table was hard to decipher, so I have recreated it here.

\begin{array}{c|cccc}&\text{Pop}&\text{Classical}&\text{Heavy Metal}&\text{Total}\\\text{Grade 8}&0.50&0.10&0.40&1.00\\\text{Grade 9}&0.53&0.20&0.27&1.00\\\text{Total}&0.36&0.32&0.32&1.00\\\end{array}

(a) In Grade 9, 53 students liked pop music.

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(b) In Grade 8, 60% of students liked heavy metal.

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(d) In Grade 9, 20% of students liked classical music.

TRUE. 0.20 means 20/100 or 20 %.

4 0
4 years ago
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Nadusha1986 [10]

Happy New Year from MrBillDoesMath!

Answer:

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Not sure if this answers your question but hopefully pushes you n the right direction.


Thank you,

MrB

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