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jolli1 [7]
3 years ago
13

A hardware store sells a 5-pound box of nails for $16.80. The store is having a 20 percent off sale on all merchandise. What is

the sale price of one 5-pound box of nails?
Mathematics
2 answers:
Makovka662 [10]3 years ago
6 0

Answer:

$13.44

Step-by-step explanation:

A percent is a portion of 100. If $16.80 is 100% of the price, and we receive 20% off then we pay 80% of the price. 100%-20%=80%. We find the new price by multiplying 16.80 by the percent as a decimal. 80% is 0.80.

16.80(0.80)=$13.44.


dexar [7]3 years ago
3 0

Answer: B

Step-by-step explanation:

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The probability that one of each color is selected is \frac{10x - x^2}{45}

<h3>Probabilities</h3>

The probability of an event is the chances of the said event

The given parameters are:

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<h3>Calculating the required probability</h3>

The probability that one of each color is selected is calculated as follows:

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So, we have:

P = \frac{10 - x}{10} \times \frac{x}{9} + \frac{x}{10} \times \frac{10 - x}{9}

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P = \frac{2x(10 - x)}{90}

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P = \frac{x(10 - x)}{45}

Expand

P = \frac{10x - x^2}{45}

Hence, the probability that one of each color is selected is P = \frac{10x - x^2}{45}

Read more about probabilities at:

brainly.com/question/7965468

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