contestada

A music store marks up the instruments it sells by 30%A. if the store bought a guitar for 45$, what will be its store price?B. if the price tag on a trumpet says 104$, how much did the store pay for it?C. if the store paid 75$ for a clarinet and sold it for 100$, did the store mark up the price by 30%?

Respuesta :

we get that for the question A:

[tex]45(1+0.3)=58.5[/tex]

It sells by $58.5

We get that for question B

[tex]x=\frac{104}{1.3}=80[/tex]

so the store paid 80 for it

We get that for question C

[tex]\frac{100}{75}-1=\frac{4}{3}-1=\frac{1}{3}=0.333333[/tex]

so the store did a mark up of 33%

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