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IgorLugansk [536]
3 years ago
14

The local grocery store will purchase food items and mark them up 115%. If the wholesale price of an item was $3.50, what price

will the customer pay for the item?
Mathematics
1 answer:
jeyben [28]3 years ago
8 0

Answer: $7.525

Step-by-step explanation:

A markup is an amount that is added to the cost price of an item in order to get a sell price that is used to make a profit.

Cost price= $3.50

Markup = 115% = 115/100 × 3.50

= 1.15 × 3.50

= 4.025

Selling price= Cost price + Markup

= $3.50 + $4.025

= $7.525

A customer will pay $7.525 for the item.

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Answer:

  B, C, D

Step-by-step explanation:

One of the rules of exponents is that an exponent in the numerator is equivalent to the opposite of the same exponent in the denominator. That means ...

  4^{-3}=\dfrac{1}{4^3}\qquad\text{matches C.}

Another rule of exponents is that an exponent represents repeated multiplication. If a factor can be written using an exponent, the exponents are effectively multiplied.

  4^{-3}=(2^2)^{-3}=2^{2(-3)}=2^{-6}\qquad\text{matches B.}

Of course, that repeated multiplication can be shown explicitly:

  \dfrac{1}{4^3}=\dfrac{1}{4}\cdot\dfrac{1}{4}\cdot\dfrac{1}{4}\qquad\text{matches D.}

The equivalent expressions to 4^(-3) are B, C, D.

_____

<em>Additional comment</em>

The expression of G evaluates to ...

  \dfrac{8^{-1}}{2^2}=(2^3)^{-1}\cdot2^{-2}=2^{3(-1)-2}=2^{-5}\qquad\text{not equivalent}

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2 years ago
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Lelechka [254]

THE CORRECT SOLUTION WOULD BE THE LISTED LETTERS. B. , F.

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3 years ago
What proportion results in the equation 9m= 10n? ?
olasank [31]

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Step-by-step explanation:

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3 years ago
Clara’s school awarded 1900 raffle tickets as incentives. The principal will draw one winning ticket. The winner will receive an
nydimaria [60]

Answer:

0.89%

Step-by-step explanation:

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Probability = (required outcome / Total possible outcomes)

Required outcome = total number of Clara's ticket

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Hence,

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