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eduard
3 years ago
8

a video store has 20 copies of a movie that each rent for $3 a day. If 75% of these copies are rented on one and 90% of these co

pies rented the next day how much money was collected from renting this movie on both days
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0

<u><em>Answer:</em></u>

Money collected from renting the movies on both days = $99

<u><em>Explanation:</em></u>

We are given that the total number of copies is 20 and that the rent of each is $3 a day

<u>1- On the first day:</u>

Number of copies rented = 75% of the number of copies

Number of copies rented = 0.75 * 20 = 15 copies

Money made from renting the copies on first day = 15 * 3 = $45

<u>2- On the second day:</u>

Number of copies rented = 90% of the number of copies

Number of copies rented = 0.9 * 20 = 18 copies

Money made from renting the copies on second day = 18 * 3 = $54

<u>3- Getting the total amount of money from renting:</u>

Total collected money on both days = 45 + 54 = $99

Hope this helps :)

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Which of the following situations calls for a hypothesis test about a population mean?
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3 years ago
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5 0
3 years ago
HELP!!!!
Nonamiya [84]
Your answer is E. $25.

First let under 12 = u, over 12 = o, and adults = a.
We can now write the equations:

2u + 3a + 3o = 174
4u + 2a = 122
a + o = 46

Because we know that a + o = 46, and 3a + 3o is in the first equation, we can multiply 46 by 3 to get what 3a + 3o equals. This makes 138.
Now we can substitute 138 into the first equation to get 2u + 138 = 174
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Now that we know what u equals, we can substitute it in to the second equation to get:
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I hope this helps! Let me know if you have any questions :)
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