3 years ago

A hand-held digital music player was marked down by 1/4 of the original price.

1 answer:

3 0

It was marked down 1/4 of the original price to $128. That means $128 is equal to 3/4 of the original price. So the original price would be 4/3 of $128. I get $170.67 (rounded to the nearest cent).

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Step-by-step explanation:

Given

Craftsman sell 10 Jewelry set for $500 each

For each additional set he will decrease the price by $ 25

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differentiate to get the maximum value

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Thus must sell 5 extra set to maximize its earnings.

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