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Ludmilka [50]
3 years ago
13

Researchers estimate that 15 out of every 25 customers at a store make purchases with a credit card. If the store has 600 custom

ers tomorrow, how many credit card changes can be expected?
Mathematics
1 answer:
monitta3 years ago
5 0

Answer:

360

Step-by-step explanation:

Number of customers who make purchases with a credit card

=15 out of every 25= \frac{15}{25}=\frac{3}{5}

The fraction 3/5 represents the part of the customer that makes purchases with credit cards.

Therefore if there are 600 customers tomorrow, 3/5 of them will use a credit card.

\frac{3}{5} X 600=360

360 credit card can be expected.

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Answer

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Step by step explanation

Here we use the rational root theorem.

The possible roots are

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We have to use the synthetic division to find the correct root of this function.

Here the roots are 5/2 and -1/3

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Let's check x = 5/2  with synthetic division.

5/2)   6   -13   13   -39   -15

-               15    5    45    15

           --------------------------

             6     2   18     6     0

Similarly x = -1/3 is also root of this function.

Answer: C. (5/2, -1/3)


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Step-by-step explanation:

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How do I do this problem
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