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2 years ago

After a wholesaler adds a markup of $125 to a stereo, it is sold for $320. What is the cost of the stereo?

Mathematics

1 answer:

notka56 [123]2 years ago

7 0

Answer:

$ 195

Step-by-step explanation:

let the cost of stereo ne x

wholesaler add markup = 125

sold on = 320

so,

x+ 125 = 320

x = 320 -125

x = $195

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————————

You can actually use either the product rule or the chain rule for this one. Observe:

• Method I:

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—————

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Tags: derivative chain rule product rule composite function trigonometric trig squared cosine cos differential integral calculus

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