A department store buys 500 shirts at a cost of $3,500 and sells them at a selling price of $10 each. Find the percent markup.

Mathematics

1 answer:

Ratling [72]2 years ago

5 0

Answer: 30 percent.

Step-by-step explanation: First do 3,500 divided by 10 to find the cost of each shirt. Second subtract 7 from 10 which is 3. Then divide 3 by ten because you always divide by the amount being paid for. So 3 divided by 10 is .3 then multiply .3 by 100 which is 30 and that is your percent markup

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b) 0.9975

c) 23.03 minutes

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Let X be the random variable that measures the time waited for a taxi.

If X is exponentially distributed with a mean of 10 minutes,then the probability that you have to wait more than t minutes is

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$\large P(X>60)=e^{-6}=0.0025$

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