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Zina [86]
2 years ago
8

A music store buys instruments and then sells them for 30% more than they paid

Mathematics
2 answers:
Tems11 [23]2 years ago
3 0

Answer:

Step-by-step explanation:

(104/x)+(30/100) cross multiply or

<u>1040+3x</u>

    10x

im not sure the answer but do <u>like terms</u> and you should get it!! im in a rush sorry if im no help <3

nataly862011 [7]2 years ago
3 0
Let cost price=x
Then,x(1+30%)=104
x(1+0.30)=104
1.30x=104
1.30-:-1.30x=104-:-130/100
X=104*100-:-130
X=80



Therefore,cost price of trumpet for $80
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3 years ago
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