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elena55 [62]
2 years ago
12

A store purchased a DVD for $12.00. The store charged a 50% markup on the purchase price. The customer was also charged a 7% tax

when the DVD was sold. What was the customer's total cost for the DVD?
Mathematics
1 answer:
stira [4]2 years ago
8 0

Answer:

19.26$

Step-by-step explanation:

Sold DVD for

50

%

more of the purchase price of

12

$

so

12

+

50

100

(

12

)

=

12

+

6

18

So customer will pay

7

%

tax on

18

$

Hence he will pay

18

(

1.07

)

$

=

19.26

$

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4 0
3 years ago
On the basis of data collected during an experiment, a biologist found that the growth of a fruit fly population (Drosophila) wi
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(b). 78

Step-by-step explanation:

Growth of the population of a fruit fly is modeled by

N(t) = \frac{600}{1+39e^{-0.16t} }

where t = number of days from the beginning of the experiment.

(a). For t = 0 [Initial population]

N(0) = \frac{600}{1+39e^{-0.16\times 0} }

       = \frac{600}{1+39}

       = \frac{600}{40}

       = 15

Initial population of the fruit flies were 15.

(b).Population of the fruit fly colony on 11th day.

N(11) = \frac{600}{1+39e^{-0.16\times 11} }

       = \frac{600}{1+39e^{-1.76} }

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       = \frac{600}{7.71}

       = 77.82

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On 11th day number of fruit flies colony were 78.

3 0
3 years ago
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